thinking about upgrading.

my current specs are.
amd xp 1600 1.4 gig
768 pc2100 ddr
epox 8kha + mb
gforce 4 ti 4200 64 mb
wd 40 gig hd
quantum 6.4 gig hd
lg dvd
sony cdrw
What would make the most sense upgrading first
I may wait and see how cof runs first. although Im sure
I will need to upgrade?
amd xp 1600 1.4 gig
768 pc2100 ddr
epox 8kha + mb
gforce 4 ti 4200 64 mb
wd 40 gig hd
quantum 6.4 gig hd
lg dvd
sony cdrw
What would make the most sense upgrading first
I may wait and see how cof runs first. although Im sure
I will need to upgrade?