Don't forget the most powerful part of RealDrums. You can roll your own. It's not that hard. There are some great drum loop discs out there with all the variation you'll ever need. Get those, read the tutorial on how to do it and voila!!
There's a disc Sony I think of all Mick Fleetwood.
Remember that RealDrums is really just a real sophisticated loop player.When you make the .txt file for your new RD style you have the same tools available as for a midi drum part.

John
ESI Gigaport HD+
Lenovo Turion II /4 Gig Ram/ Win7x64 be
15.6" Monitor
"The only Band is a Real Band"
www.wintertexaninfo.com/BANDS/JohnnyD.php