Reason, by propellerhead software is a complete studio. Drum machine, synthesizer, sampler, effects, etc. That's a good place to start. Rebirth is also good for the 303s. Cubase for sequencing, but if you ask this question in the production thread, you might get more answers, but reason is prob' the best to start with, or fruity loops if you want something a little more "simple" and cheap

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1 out of every 4 people in this country are mentally disturbed. Look at your 3 closest friends. If they seem okay, then you're the one.