And like yrag once said to me, if I wanted a faster rig I should, "buy a f**kin' bigger CPU." That man sure has a way with words, hey?
Hehehe, it has all to do with the cost/performance ratio. I knew the i7 920 was cheap BUT massively overclockable - which is why I chose it.
As for putting the SSDs in RAID 0, that was the plan from the beginning. 240 GB is more than enough for a system drive, and SSDs, unlike hard disks, scale really well in RAID 0 configurations. Three SSD drives was also the sweet spot, since, at 700 MB/s sequential read speed, they fully saturated the SATA 2.0 bus.
Now I'm waiting for Ivy Bridge before moving to the world of SATA 3.0, PCIe 3.0 and USB 3.0. 