Don't know if this will help, but just built Rig XI to carry the next 3 years (for reference, Rig I was a 80286-12 in 1988). I never select absolute newest technology - make sure its solid and save some cash.
MSI X58 PRO-E USB3 (PCI-E X3)
Core i7 950, Stock cooling (for now)
6 GB Corsair XMS3 1600MHZ
WD VelociRaptor 300 GB 10000RPM
WD Black 1TB 7200 RPM
Seagate Barracuda 1TB 7200 RPM (brought over from Rig X, which still has 2TB on it - included all my downloaded game material, saves a ton of time)
Ultra 750W PS
ATI 5850 1GB @ 755 MHZ (only 1)
Cooler Master Case (side loading drive bays - love this).
Lite-On Blue Ray
HP LS DVD (Reads/Writes DVD/CD faster than the Blue-Ray)
Ultra internal USB Card Reader
Windows 7 Pro
No issues from the first time I fired it up. Seamless build, no conflicts, no fuss, Win 7 installed in about 12 minutes - I'd say they've taken some of the fun out of it, but I'm older now and don't really feel like setting a dozen IRQ settings by trial and error
.