Get a copy of Propellerhead's Rebirth. It's now a freeware app, and will run in windows without a VST wrapper. This thing emulates (technically, it plays samples) of a TR-909 and an 808. It also has a pair of 303, so it's a heap of fun if you know what you're doing with it! If you've never programmed a 303, you might struggle a bit with it, but the TR's are as simple as it comes.