909 + 303 = 1212. I guess.
I've been keeping an eye on this new company D16 Audio Group for a bit now, both from a professional standpoint (in my role as VP of Audio Damage) and as an interested bystander.
They released a 303 emulator called Phoscyon a couple months back, and someone tipped me to it via the AI tip line (I forget who, so sorry for not giving you props). The thing that caught my eye was the UI, obviously done in 3DS Max (which is my own chosen medium of UI design; I can see it a mile away.) In any case, we were like "well, they're certainly on the right track."
Today, they announced Drumazon (glamor shot pictured above), which is a 909 emulator. The one thing I'll say about these guys is that they don't do anything by half measures. Both of these plugs seem to be incredibly thorough representations of their respective inspirations. I haven't nutted up and bought either of them, nor downloaded the demos (available for the 303), but I've listened to the audio demos, and they seem to have gotten quite close to the mark with both.
Anyways, if you make the crazy electronic dance music all the kids love today, you probably want to take a gander at these two. $117 for the 303 and $163 for the 909. VSTi only, but both Win and UB OSX.