building a new computer

[Dr.Crazyhead]

I was planning on getting a prebuilt system but now that i have found that it is crap i will be making one completely from scratch.

I have £300 and i need to know where to shop what to get and why to get it(not so much the last one)
and everything needs to be in the uk

[oldkawman1]

If you choose carefully, ebay will be a good source to build your box