The Sound Blaster X-Fi is a very superb sound card, if you can afford it. If your budget is a bit low, your best bet is to stick with the Audigy 2 series. It's cheap and performs very nicely.
O ok thanks a lot guys . So If I can afford a Soundblaster x-fi I should go for one of them? I've noticed that the audigy's are not that much cheaper than the x-fi's anyways? For example..