The F3's are fast, run cool, and run quiet. With two of those in RAID0 you'll be approaching 300MB/s sequential read/write. I have a single F3 which i use as a storage drive, and i like it a lot, and read/write on a single drive is 147MB/s, max.
From what i've heard, the WB Blacks are also fast, but i haven't used one.