1. Cases - you must buy the right case for your motherboard as they come in different sizes. You can pay up to £150 or as little as £20
2. Power supply - there are different ranges of power supplies, depending what you want to use your pc for. They range from £90 down to £10
3. Fans - the more you have, the better to keep your pc cool, especially in a heat wave from as little as £2.99 to £199 for water cooled
4. Coloured fans - for the pc that has a window on the side from £6.99
5. Motherboard - there are loads of boards to buy some have onboard graphics for cheapness & you can update later, prices from £25
6. CPU - the brains of the motherboard, make sure you get the right CPU, there are different makes Aphlon,Pentium etc from £39
7. CPU paste - you put this on the CPU before you put the CPU fan on. It keeps moist, stops the pc fan being welded as the pcu gets hot
8. CPU Fan - for keeping your CPU cool, prices from £6.99 and you can get water cooled from £99
9. Ram - comes in lots of sizes and speeds, prices start from £19. Make sure you get the right type of ram for your motherboard
10. Hard drive - you can get IDE or SATA from 40gb to infinity, depends if your motherboard can take it. Prices from £40
11. Fans - for your hard drive, is a must if you keep your pc on most of the time, so it keeps as cool as possible from £5
12. Graphic card - a must if you want to play games. Prices start at £17. You must get the right card for the games you want to play
13. Power supply - Mains cable to connect your computer to the mains, from £4.99
14. TFT flat screen monitors - 15" from £95. Make sure you get 3 years guarantee. Again there are different pixels for gaming
15. Speakers - there are loads to choose from. Prices start at £5.99
16. Keyboard - from £6. and mouse from £6. You can get wireless keyboards and infra-red mouse, prices from £25
BEWARE
YOU ONLY GET WHAT YOU PAY FOR