IMO - Seagate is the best hard drive on the mainline consumer market-
Here are all Seagates - by best rating - on Newegg-
The clear winner is the 250gb - at the top of the list - for $60 - here:
I own several of these - and they have worked for years-
[B]Hint[/B] - when you get your new harddrive - it should have a jumper in the back - be sure to look at your current drive to see if the jumper is in place (SATA I) or removed (SATA II) - then leave or remove the jumper according to your existing drive-eh!!