The difference in price isn't that much, say $20 - $30 to go from a 5400 RPM to a 7200 RPM.
** The difference is HUGE, in overall system performance if you want a high-performance computer, ESPCCIALLY in todays games (the high end 2001 / 2002 games), and the upcoming games.
I would recommend the MAXTOR ATA/133.
MAXTOR 80GB 7200RPM Model # 6L080J4 - OEM, DRIVE ONLY D740X Series Ultra ATA 133 2mb Cache Buffer 8.5 ms Seek Time - 3 Year Manufacturer Warranty 80.0 gb 7200 rpm
** It is ONLY $128,,,,,,, and $7 shipping. A paltry $135
for the fastest HD out there. I know, I run them.
......... $7 is for FedEx shipping.