And by cheap I mean $120 or less for a computer monitor, I've already got a computer picked out and now I'm looking for a cheap monitor to go with it.
Dell
I take that back. lol
Go look in BestBuy. You can get a relatively nice LCD for not much. My Samsung 19" LCD was like, $200, but it's excellent. So yeah.
Check out buy.com. Their prices are fairly cheap and decent.
http://www.newegg.com/Product/Product.aspx?Item=N82E16824155050R
Boom
donation containers and neighbourhood curbs
Check some classified ads. I always see monitors for under $30.
If you want a LCD, you may have to pay a little bit more.