All these responses are super helpful. A few thoughts and questions:
I'm keeping my eye on Craigslist to see if there are people who are not wood dealers but have older (or newer) stashes of wood they want to get rid of (perhaps they used to burn wood and don't any more). What I can see now that falls into the categories of what people here have said are the following: The key is to always be on the look out . . . especially later this Spring and Summer when folks may be selling their homes and moving and may not want to move the wood or are told by the realtor to clean up their lot.
1) A guy has over a cord of pine for sale pretty cheap ($100). He says it's been stacked and seasoned for four years (from the pic it looks grey). He doesn't say what kind of pine and he probably doesn't know. My questions are: is 4 year seasoned pine overseasoned and in general how much should I worry about which kind of pine or should I just get my hands on any kind of pine, at least under my current circumstances? (I see other folks with unsplit pine too, and they never say what kind of pine). This would also require my picking up and loading (and then unloading and stacking at my place) which is a PITA, and would involve me renting a uhaul or something as my minivan won't cut it, but it's cheap so maybe worth it. If he's like most folks who are not in the know, he may be calling his evergreen tree a "pine." It could be pine, spruce, fir, hemlock, hackmatack, etc. . . . but regardless . . . it should be halfway decent . . . if it isn't rotten or punky . . . it really cannot be over-seasoned if it was stored outside. You will want to split it sooner rather than later. I should add that generally softwood in New England is not considered very valuable as it tends to burn up much faster than hardwood. I might take softwood for free, but I wouldn't pay for it in my neck of the woods. The other question is whether the guy actually knows what a true cord of wood is . . . not a face cord . . . not what he thinks a cord should be . . . but the actual definition.
2) Someone has over a cord of ash and maple logs. He says the maple "was dead and already dry," and the ash is green. Again these are unsplit. Very cheap (he's asking for $40), but again would require me renting a uhaul or something and moving.If this is a true cord of wood I would jump on this . . . due to the price. The maple may or may not be ready to go this Fall (there is dead . . . and then there is dead-dead). Contrary to popular belief in a modern stove one should not burn fresh cut ash . . . it will season quicker than other wood species, but for best results give it a year or more.
3) I have some trees behind my house that fell and have been down, but uncut, for anywhere from a few months to a few years or possibly more (before you jump to the conclusion that I'm a bonehead for not getting this wood sooner, remember I just got into burning!). I know that to really season wood should be split, but for some of these that have been down for a while, might they be dry or close? What should I look for to see if these are good to use, not infested with bugs, etc. I haven't used a chainsaw yet, and I'm a bit nervous about it, but I guess it's time to learn! When it comes to wood ready to be burned it usually comes down to one word -- depends. Depends on the type of wood. Depends on how long the wood was down. Depends on whether the wood is on the ground or up off the ground. Depends on whether the wood came down in a storm . . . or whether it came down because it was rotten at the core. In my first year of burning I was semi-successful burning wood cut off tree tops left behind from a wood cutting operation a few months before. To see if the wood is any good you will need to see if it is punky/rotten or solid . . . and as for when to burn it if it is solid -- you can either go with time or use a moisture meter. I don't worry too much about bugs though unless the piece of wood I'm sawing has a nest of ants . . . in which case I might toss it to the side for the birds to feast on. By the time I stack the wood in my drying stacks, move it to the woodshed and then burn it the ants (and most other bugs) are long gone. One word when it comes to using a chainsaw: Safety. If you haven't used the saw take the time to read the warnings, use the safety gear and be very careful. It's a tool and like most tools is only dangerous when proper safety protocols are not followed.
4) Related to all of this, I'm thinking about storage and starting to worry about how to best do this. As mentioned, I'm planning on building a deck, and building a wood storage area on that that should be able to fit 2 to 3 cords. I planning this, I hadn't thought about just how much all this wood weighs and now I'm wondering if a deck can handle it. The part of the deck that the wood would be on is mostly ground level and then the ground slopes down so the rest of the deck will be above ground up to about 4-5 feet. Thoughts on wood weight on a deck? I have another deck already that is attached to the house (the new deck won't be) and could get a cord or a bit more there without hampering use of the deck for enjoyment) but it's about ten feet above ground, and I worry about the weight. I have a concrete storage are that's below that deck that I think might have been built for wood storage, where I can get about a cord and a half - it's outdoors but gets no sun, and is right up against the house so not great wind flow. I also have some other spots where I can get some wood, but all up against the house so not great wind flow and I've heard you should not store wood up against the house due to bugs. Is that true? Finally, I have a good amount of land behind my house, all of which gets some sun and great wind, however it's all a fairly steep hill. There is one flat section, but it means hauling up and down the hill to get to that area (ugh!). I know there's a lot here, but any thoughts or suggestions are very helpful. Thanks! Sounds like a lot of weight on a deck. It would have to be a really rugged deck to handle the weight. I might consider an alternative location. I'm fortunate with plenty of space for seasoning stacks . . . and the ground is level. I know however that other folks have had to contend with uneven terrain . . . perhaps someone will chime in on how they stack wood on uneven ground. Also, I personally keep seasoning wood away from the house on the off chance that bugs might find my home to be a more hospitable place to live.