Looks very good, but here are a few suggestions:
1) The Asus mobo doesn't support multiplier changes, so you won't be able to overclock too high (only with FSB). The Epox 8K7A and MSI K7Master are both just as good/stable as the Asus, but can OC and are cheaper. I'd get one of those 2...
2) I have the same audio setup (GTXP and FPS2000) and I like them a lot, especially the sound card. The speakers are very good for the money, but a few more dollars will get you Boston Accoustics BA4800, which kick the FPS2000's @ss. I think the little price difference is well worth it.
3) The thing that has me puzzled is you seem to be a gamer because of the GF3, so then why the 15" LCD? The point of buying a GF3 is to be able to play games at higher resolutions, so it's kind of useless if you get such a tiny monitor. Unless you can buy a 17-18" LCD, I'd settle for a decent 19" CRT monitor. But maybe you don't have much desk space... Even then, a 15" monitor is too d@mn small... 🙂