I picked up a used Black and Decker 10" miter saw off Craigslist for $30. I had a couple of quick projects coming up and wanted to spend my money on wood rather than another tool. It's a bottom end saw - no tilting for compound cuts - no bells and whistles - very basic. I figured it would due for the time being. If it broke, it broke. If i found i needed something with more capacity, i could likely sell it for what i paid and put that toward another saw.
That was about 2 years ago. I put a decent blade on it and have used that saw for numerous projects including several furniture pieces, a hardwood flooring install, trim and molding, and numerous framing projects. At this point, when it dies, i'll wish i had another one.
I guess i have two points - don't be afraid to look for a decent (even "cheap") used saw, and - they all cut wood. If you get something with the capacity you need, bells and whistles aren't always necessary, or even beneficial.
If you need a lot of capacity, have the room (they really don't take up more footprint than most sliding compound miter saws, but they're not as portable), and don't want to spend a lot of dough, you might consider looking for a used radial arm saw. I see Emerson built Craftsmans all the time for less than $200. Tune one up and you've got a work horse.
Paul Hubbman