I went even cheaper, mostly because I'm a cheap prick
I bought a complete set of Simmons pads (if you remember those ridiculous, octagon shaped things), and attached them to my existing Alesis DM4. I've since supplimented that kit with a ebay purchased Roland PM16 for $40, and a good friend of mine had an incomplete Simmons kit from way back when he was going to "toss". So I painted all the octogon parts the same color (black), and hooked everything to the PM16, and now I have a nearly complete set of midi drum triggers. For drummers like me, who really aren't drummers, I find this to be more than acceptable.
My total investment was about $200... and is probably not a good solution for people who can actually play drums well.
But since most of my midi-based recording is overlayed, I can record the kick and snare together, as I can play those together, then add other drums and fills after the fact since I don't have to think about the kick and snare anymore.
Like I said, I'm not a drummer
