) but I've run into the limitations of Windows XP

Whether this is right for you depends on the tasks you will use it for, and your threshold of tolerance for highly intensive tasks

My last rig included an Athlon 64 4000+ San Diego (Single Core)

I would recommend this or maybe a step up to anyone looking to try and build a decent new computer on somewhat of a budget The fastest processor on the market is not always the best value

This means that if your motherboard will allow it you can easily overclock these without any modification from stock parts

I've also heard from a friend abroad that the price of this chip has gone up in the UK by 50 pounds over the course of the last year so intel is definitely keeping these high artificially, you may want to check into a latest edition AMD quad for a newer and cheaper alternative