Seagate's 7200.11 drives are the fastest 7200RPM drives out so far I think
they have 32MB cache, and SATA 300 interface.
Apparently, they have a sustained transfer rate of over 100MB/s, which is almost comparable to a Raptor drive.
Plus, Seagate are always going to be extremely reliable. And they give you 5 year warranties.
the 7200.11 drives come in 1TB, 750GB and 500GB I think. Although they're quite new; I can only find the 1TB drives so far.
one terabyte drive