News paper maybe?
Check out pawn shops, second hand stores, yard sales, fleamarkets, estate auctions. There are lots of places to look. I look at Auctionzip to find local auctions going on, and lists of what they are selling are there usually pictures too. I'm sure there are other auction listing sites, it's just the one I know of. If you are in more of a hurry to get a good one and don't have the luxury of biding your time then bite the bullet and buy a good one new.