Hi. I am new to this and have done some research on graphics cards but i am still stuck on which one to go for. I have an Intel P4 3.6GHz, 1GB RAM, PCI-E slot and i want to spend no more than about £140 or $240. Any ideas that you may have would be helpful. Please bear in mind that i may not be able to buy from shops like newegg.com as they do not ship internationally to me. I can get a Sapphire x850xt for about this price. Is that good? I have a 350w power supply too. Will that limit anything?