Dudes, I am by no means an expert, but since I just went through all this a few weeks ago I can offer some suggestions.
I bought a Pioneer. It plays great. I paid $75 it. I thought it was a good deal, many may not think so, but considering what they were priced at back in the day, I think I did ok.
Remember, shipping will be a little high too so be prepared to spend a little dough. If you look on ebay, which is where I got mine, you can most likely find a nice one under $100 bucks. Not bad I say, cheaper than most DVD players.
Don't just bid on the first one you see, look around.
Also, look to buy players with some LDs included.
Thats what I did and it was cool. I got my player and had something to watch and didnt have to wait to buy a LD.
As for buying LD, they are for the most part dirt fucking cheap, but be careful, alot are in standard format (fullscreen) unless the flick is meant to be seen like that, watch out!
Good luck guys and let us know what happens.