Motherboard: Epox nForce 4 ultra
CPU: AMD Athlon 64 3000+ Venice Core
RAM: 1GB (2 X 512 Kit)
Check for prices on these items on the UK, then see how much you have left. You still need a video card, case, power supply, DVD burner (or the optical drive of your choice), and a hard drive.
The items I told you are the basic ones, the ones left have to be chosen according to what you want to be the strength of your system. For a gaming rig the most important part is the video card, you should get at least a 6600GT or the equivalent ATI card, another important item is the power supply, try to get a good brand, don't just buy it for its wattage.
Read the FAQs so you learn something from this,(as said before) and post your questions.
<b><font color=green>Celibacy is not hereditary<font color=green></b>