a really nice flat black with a couple coates of clear could look pretty good. Aside from that I really like a dark graphite. Dont know if they still have the pics, but suprastore had a page on someones widebody in a really nice graphite color.
maybe the color it came with? I know I will probably get flamed BUT....custom paint and "kit's" are a waste of money IMO, but I guess I am looking at the perspective of what will be desireable in the future. Anybody that grew up in the "minitruckin" scene know's what I mean and how hideous those vehicle's/paint look like 10 years later.