Gonna go for the HAF, but in norway.
Switch the WD data drives for Samsung Spinpoint F3. They're faster and cheaper.
PSU: You can't go wrong with Corsair. Probably need at least 750W
Good point. Rather 1Tb 7,2k rpm than 2Tb 5,4k rpm.
Maybe even more than 750W PSU.. To "grow with"
As to the HDD prices for SSD are still pretty stiff.
Think a 15k rpm SAS/SCSI would be a good alternative? Could get a 300Gb for half the price of a 256Gb SSD i think..