WinPro x64 DAW tweaks?

Anybody know anything specific yet? As in, different from (or in opposition to, even) regular XP tweaks? I want the new machine (Winpro 64, Asus A8v Deluxe, Athlon 64 4200+x2) and Sonar 5 x64 running at it's best...

I've already done the global 'best performance' and 'background services' thing.