cjl - +1^, good setup
jrhilsch
Since you alread bought 2 more WD Black 640's. I bought two of them and put them in a raid 0 configuration. Raid 0 results in the operating system treating the two drives as one drive. BUT if you set up a raid 0 stripe on the first 100 gigs ( Called short stroking. For operating system and programs) and then setup the remainder of the drive as a 2nd stripe (For your files) the operating system treats them as two drives. This cut my access time down to mid 9 mSec for the operating system/programs. How much performance boost - not sure, but did improve preceieved performance.
2nd question. Vista upgrade disk was the same in that the previous operating system had to be installed, BUT There was a work around. DO NOT know if this work around will work for Win 7 - BUT I plan on tring it as I two ordered the $50 upgrade (My vista upgrade was a freebee).
What I did with Vista upgrade. 1st disconnected XP HDD. 2nd Installed Vista upgrade WITHOUT entering the Key. After Vista upgrade loaded, I then reinstalled vista and entered the Key. Reconnected XP and using F12 to select boot drive (Gigabyte MB) I could dual boot to old operating system, or vista. Was great while the ironed the bugs out of Vista. I know have a triple boot, XP pro, Vista Bus, and Win 7 RC Using F12 -NO software boot manager needed to screw up. REPEAT - do not know if they left this "feature" for Win 7, But plan on trying.