Personally, I wouldn't buy an unbranded hard drive from anyone.
Taking your projected use into consideration, if you're going for XP, to save yourself any bother with SATA drivers, I would go for an IDE drive.
XP: click here
IDE Hard drive: click here
If you still fancy a SATA drive with lots of storage for your music, then it would probably be better to opt for Windows 7.
Windows 7: click here
Enter this code in the checkout cart: D89DQ6793 to get a 10% discount when buyiny Win 7 along with the hard drive.
Hard Drive: click here