I'm pretty happy with the Samsung F4EG, just got one yesterday. Running in an external case
It's way quieter than the Samsung 103SJ 1TB 7200rpm drive it replaced, and faster!
Sounds like it's half the volume.
It's a 5400rpm drive, but the first 1.2TB is faster than average speed of the Samsung 1TB 7.2k drive I have
Although it's pretty slow after that, so it would not be a bad idea to buy one just to use the first half, they're cheap enough
Burst speed is 144 MB/s, 16ms access time is slower than the 7.2k drives though