That motherboard will support DDR PC2700 ram so you may
as well get that as its faster than the PC2100
The grahics card seems ok,but I am not clued up on them.
I cant find the voltage that it runs at,your board of choice,
runs at 1.5v some cards require 3.5v(I think) and wont interchange.
As far as I know you can run an 8 X in a 4 X AGP slot
but I would like someone tho confirm this for you,
either another member or the supplier.
That CPU should do fine,(I have an XP 2100 + in my PC)
Another Pals member,Camstop whos away on holiday at the moment,has just upgraded his to an XP 2400 and says it doesnt
seem that much quicker than his XP 1600 he had in before,
so I think you will be pleased with it.
Funnily enough Mark I am looking for a Seagate hard drive myself as I like Seagate.
I am just waiting for the 120gb to drop a little more or
my finances to improve.
That model is an ATA/100 other manufacturers make an ATA/133
which again will be supported by your board.
I am not sure of the advantages of a 133 over a 100 for
a hard drive as when I looked at the specifications for data
transfer some of the 100s were actually faster than the 133.
Seagate do claim to have the fastest drives at the moment.
I didnt add the prices together as I assume that you
have done so (what does it work out at?)
You may find that you need a better power supply than
the one thats in your case at the moment too.
Hopefully this will help you a little and someone else will add their thoughts later