I would suggest Seagate, Hitachi and Western Digital - they provide 5, 3 and 3/1 years warranty respectively (note that this may vary with the models). Longer the warranty, more the peace of mind.
All other manufacturers usually provide only 1 year warranty. While researching for a new hard drive a couple of months back, I found a lot of complaints from users about Maxtor and WD - so it seems like in the past few years many drives from them have not been reliable (and with the 1 year warranty it'd be a terrible waste of money). This does not mean that all their drives are bad (so look for the warranty). I was undecided between Seagate and Hitachi and finally went for Hitachi since I got a good deal with 3 years warranty (as far as I know, it's a global warranty with Hitachi).
I'm not sure what capacity you're looking for, but I have also read several bad experiences from users about drives that are bigger than 300GB (regardless of the brand) - this is most likely a temporary problem (while the companies work out the issues with higher densities).
For good performance (currently), look for:
* 8MB buffer (which is pretty much the standard now) or higher.
* 7200 rpm (standard again - don't look for anything else!)
* 8ms or lesser average seek time
* P-ATA 100 interface (this is likely the compatible choice for you, like Blue Velvet indicated)
For Parallel ATA drives, which is what you'd be buying, currently the best price per Gig for an internal drive is around 30 cents to 50 cents (US) - anything more than that is expensive!
Check
www.edealinfo.com,
www.dealmac.com/sections/storage.html,
www.resellerratings.com,
www.dealtime.net etc. for good deals. Also check these sites for price comparison -
www.pricegrabber.com,
www.pricescan.com,
www.pricehead.com,
www.bizrate.com,
www.nextag.com (and also the individual websites of popular stores).
