how di i up grage my cpu from 1000 cpu 2 1500 cpu and how do i get Nvidia GeForce 3 or equivalent?

honestly mate, it's new pc time...i'm not being smart, or cheeky... but we're now on the 10 series of GeForce... with the 8series coming in at £60-130 for good cards...

and i doubt you could overclock your cpu to that extent...

a 50% increase.... nice thought...

all modern pc's will have a GeForce 7 or equivalent card as standard... a little extra will go a long way though

EDIT

£60-130 would equal £115-200 dollars, although american hardware is often cheaper...

in truth though, i wouldn't upgrade a system under these specs to that extent, it will make more sense to buy a new one; think about it, to just buy a new base unit (leave your monitor and keyboard, mouse etc as they are...) would cost you aprox $250-$300 to meet the specs of what you need there... all with a years warranty.