Barracuda 7200.8 SATA NCQ - ST3400832

If my funding comes through, I'm getting 4 of these for a 1.2 TB RAID 5 array. (raw storage would be 1.6 TB, but one HD's worth of space is used for parity bits).
Chances are I won't and I'll be sticking with the WD1200JB (I already have one and would buy another.). Still will probably have 4, but then only will have 360 GB.