I've got a Roland td3 and I'm very very pleased with it. I know its a big price jump from the cheaper kits and took me another 6 months to save for it but I consider it to be a pro kit and if you really want to learn drums and need to get an electric kit rather than an acoustic then you can't go wrong with roland. If your not 100% that its something that you'll keep up then you've got the choice between buying the cheaper kit for not much outlay or getting a higher end kit which will have a better re-sale value should you want to sell it.
its all about the triggering and responsiveness and the alesis kit I tried was a world apart from any of the roland or yamaha kits i'd looked at, you may not think it matters when youre just starting and bashing out beats but very soon you'll want to do something that needs just that little bit more feel and you wont get it from the cheaper kits imo.
whatever just get bashing!
