I'd like to get an inexpensive controller, say around 49 keys to use for/with the synth, pad, etc. plugins in my DAW. Running an iMac with LE8.

Around $200 would be nice. From what I can tell, I should be able to get some kind of reasonable controller USED for that price.
I don't think I need many bells and whistles, but I know very little about midi controllers, so any help/advice that can be thrown my way would be much appreciated.

Thank you.