not really the G5 starts at 1799 so does the dell XPU start about the same price. really great the G5 is I ordered 2 more 1GB chips today so I can expand to 8GB. Just to have the biggest mac for the time being.
and I can get the ram through macworld for about half price ;D

I think the G5 and the dell XPU are about equal. only diffrence the dell has more HD space.