if you reinstall windows it will format the hdd anyway so just make sure that youhave everything important saved.

before you get a new one, you could probably add a few parts taht will increase its performance for a fraction of a cost.

forst i would say get some more ram, i dont know how many slots you have but if its 3 or 4 then you could but a 512 or 1gig ram card in. if you only have 2 then get a matched pair of either a gig or 2. if they are matched they work together perfectly and will definately improve performance.

if you dont have a seperate graphics card, it mite be advisable to put something in a nvidia 6600 or higher will see you right and can be picked up pretty cheaply at the moment.

finannly i would say put another hard drive in there. there easy to install. once you have put windows on just open her up and you will see there is another connector next too the one in already on a wide thin ribbon and a power supply from the psu.

this should free things up, best to use the smaller one for windows and programs and the other for all else

finnaly its worth givin you computer a clean on the inside. cheak that the fan vents are all clean and free of dust and then get rid of any other dust and ash in the machine

most of the parts can be got from ebay or Ebuyer - Cheap Computers, Laptops, Digital Cameras, TVs & more! which is an awesome site

and you should have a bangign machine for the fraction of the cost.

peace

snowblind.

ps hit me up if you need help working out what ram you have