Quiet, Reliable Hard Drive

I think that my existing HD (an Other World Computing Mercury Pro Elite) is about to give up the ghost, and want to find another HD to replace it. The OWC was always noisy, and it is likely due to the Hitachi drive within. Anyhow, I'm looking for something 500gb, quiet, reliable. One great deal is the Western Digital Mybook , though I'm not too sure of it's reliability.

Any advice on good HD's to consider? I had a bad experience with LaCie, so am hesitant about it. Thoughts?

Thanks, Peter