I just built one ...
ASUS Z8000K (a.k.a. A2K, Z8K, A2000K) with DVD-ROM/CD-RW, SXGA+
AMD Mobile Athlon64 3400+ (61.5 W)
Toshiba 80MB, 5400 rpm, 16 MB cache
Assembly took about 20 minutes.
This hardware guide was very helpful:
I love my machine ... no dead pixels, very peppy, about the same weight as my old IBM A31. The only bad thing is the hideously loud CPU fan, but it does stay cool...