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Toontrack Support Forum
There's a ton of regular users of all the Toontrack stuff and tons of threads (as you can imagine) on S2.0.
From what I've read on there S2.0 is awesome, and comes with lots of useful presets. I too am considering upgrading from EZdrummer, but for the moment, money is tight, and the Vintage Kit mixed with a little bit of Nashville works pretty well for me for now. There are two new EZX packs coming out the end of this year as well. Jazz Kit and Funky Drummer.