Hey Mday, I looked up your system rigs and I see you have...
Intel celeron 533MHz @ 824MHz
asus CUSL2-C
448 MB of generic + infineon pc133 and pc 100
ATI ATI AIW Radeon (ATI Radeon)
Western Digital Expert 18.0 GB @ 7200 RPMS
2 WD Expert 18 GB in RAID 0 and another WD Expert, 13.6 GB
Optiquest v95 + NEC MultiSync XV15
Creative 6x DVD-ROM
Plextor 12x10x32a
Philips Acoustic Edge
Dlink nic
sc750a and a whole bunch of fans
Ati Expert 98
If that's your current setup, why not just upgrade that and your mobo to an athlon instead of building a new system if you don't wanna spend the $$?