So I think I finally decided on a rig! I'm going with the Gigabyte P35-DS3R and the Cooler Master Stacker 832 (from the other post).
Obviously, I'm waiting for the July 22 price cut, which also gives me more time to collect more money to be more comfortable after spending $2k on a rig. I'm really excited about this rig as a whole, but especially using the switch to use between this rig and my old rig.
I also might purchase a 500GB internal HDD and put those 3 hdds in, Raid 5 I believe? Something like that where two are in Raid 0 and one backs those two up. I'll figure something out. This way I get the speed of Raid 0 but also have the reliability of having everything backed up on another HDD.