Greenmonsters
Wannabe Duck Boat Owner
A good bat that isn't composite, and is cheap. You're not asking for much, are you? You're most likely looking at a used Anderson; techzilla, rocketech, nanotek, etc. Cheap and good are usually not synonymous. Like Amy said, you can certainly find some deals with some effort. Occasionally on ebay, craigslist, or even some local stores.
Another Anderson option is the KFP, which is Anderson's entry/mid level single-wall bat (Nanotek is the top shelf) and retails for $199. Its a good bat and essentially is a slightly updated Pyrotech, which you may be able to find a little cheaper. Both these bats are -11 drops and swing balanced. The Nanotek is a -10 drop and is barrel weighted. Anderson's double-walled bats are the Techzilla (-10 drop swing weight), which is handle weighted, and the Rocketech (-9 swing weight), which is end weighted.