I just bought the scarlett 2i2 and plugged it in for the first time last night. Im not sure how i feel about it so far but i am still trying to figure out if the quad capture is worth the extra money.

Windows 7 (64bit)
core2quad @ 2.4ghz
Sonar x1

I am replacing my PCI audio card, an Echo MiaMIDI (great card when it worked but drivers had constant conflicts)