Kind of my situation as well. The only time I use my speakers now is to ocassionally play music or watch a video. I play a lot of MMORPGs but I always have the sound turned off because I have the television or radio on at the same time. I have just been intrigued lately by some of the discussion of the xifi set ups, and people are raving about them being the next big step in computer audio.
Let me know if you get one. I plan on getting on, maybe, but it is more likely if a big money truck runs into myself and spills all over my living room. I can be a tightwad, and if I think I do not need it, it is unlikely I will buy it.