how much would i need to spend on a new computer?

http://www.cyberpowersystem.co.uk/

cyber power has some really great custom systems and even better reviews from customers. I would look here for a good deal on a decent rig to meet your needs.

Well Mate:

In recent years the cost of owning a computer has dropped dramatically, due in part to increased manufacturing capacity in the Far East as well as increased demand as more and more people realise the potential for computers in the home.

This year, the cost of equipment is due to increase, due to a shortage of components and the global financial crisis which is affecting consumer demand.

Prices:: 0-150 pounds = at this point probebly your getting a second hand one

150-300 pounds = There are two types of PC that you can hope to buy new within this range:

Nettops

Traditional Home/Office PC’s

300-600 pounds = At this price range we’re beginning to step into the realms of premium home use hardware. PC’s costing this amount should be usable for the forseeable future, though most will still struggle to play the latest games.

600-1000 = If you’re looking at spending this much money then you’re either looking for a premium home media machine, or towards the middle of the gaming spectrum. Manufacturers such as Dell and Sony offer machines that offer all of the performance benefits of a modern PC,

you can get one for around £350 or cheaper if secondhand