Get a Seagate Barracude drive. The are quietest hard drives on the market. click here for the 40GB model. Personally, i'd pay the extra £7 for the 80GB model. Hard Drives are so cheap these days, and applications are getting bigger and bigger, you would be silly not too ! click here for the 80GB model.
I have a segate in my machine and its absolutely silent, can't hear it. Can't recomend it enough.
My weapon of choice is the Maxtor. Just took delivery on a 160gb Sata. Also got a Western digital 160gb on order. Not heard anything bad about Seagate. Had a Hitachi fail on me at work at the beginning of the week :-( As people have stated its worth getting bigger than you need at the moment. Dv, music, digital photos soon eat up space. A 40gb drive will be about £35 A 80gb about £41 120 gb about £60 and a £160 about £70. Try click here and not only does it give you the best prices, it has a handy search for what you want. The difference between a drive with 2mb cache and 8mb cache is a few quid and in my opinion worth it.
Does anyone know the biggest HDD the Soyo 6BA+ III 2AA2 can take? I seem to have lost the manual. I tried a friend's 60GB Western Digital but I couldn't get it to be detected. This was EIDE. Does my machine not support EIDE?