I think the Alesis DM5 Pro looks really good for not much money, especially if you can get one second hand.
owned one, DO NOT recommend. the module is simply awful... does not trigger very well. i've owned a trigger i/o as well, also useless after extensive attempts at configuring and even flashing the firmware. I've had four different e-kits in my lifetime and fantasized about countless more... seriously, you NEED to get a cheap Roland. anything else just doesn't work. you will be frustrated and waste time/money trying anything else. i owned a roland HD-1, the one with the fake kicks (which are super quiet and rather fun) and that was by far the best i've had and was awesome to plug into superior or any toontrack sampler. the obvious limitation there, is you can't do double kick/hi-hats at the same time.
now i have a frankensteined old td-6 that i shat together with various parts and i wish i just had a new one because the modules on the floor and there's a horrifying cabling nightmare intertwined all around it and the kick is broken, but... it's still awesome. roland. must.
if you're handy and motivated, lurk around on some DIY e-kit forums, you can build e-kits from virtually nothing with some time and a soldering iron... and then you just gotta find a td-6 or something kickin around on eBay.
......all that being said, the newest alesis (NOT the DM5) seems reasonable for the price, after sitting down at it only briefly in guitar center.
edit: also, the other thing about the DM5 pro (especially with the surge cymbals) is that the thing is just ridiculously loud, like ... louder than dampened drums. totally negates the point of having an e-kit to start.
