Help with HD replacement selection

I have an older IBM desktop, running XP, I need to replace (due to lack of space) the HD. The current drive is a WD800BB. Can someone recommend a replacement drive? I think a 160 or 320 capacity wood be fine. Serial number of current drive is and product number is WD P/N : WD800BB-00JHCO.  Thanks

Your model has a PATA (IDE) interface, so they are not that common anymore, any of the models on the link below should work, but just in case go to the laptop support website and look for any compatibility list.

http://support.wdc.com/product/install.asp?groupid=502&lang=en