Ableton Live, got it through community college for $50 ;)
looks like megabloks if fl studio is lego, but holy stuff it's so much easier and more powerful than fl studio in my opinion
although i still love to work in fl studio anyways. kind have been slacking on my music lately, but a DJ friend of mine said he's going to tomorrow world and is looking for producers to take with him... so i'm starting to pick it up again this summer \o/