If you're willing to part with a small fortune, I'd highly recommend one of these:
Minolta Magicolor 2350. It supports postscript and has built-in networking via ftp (among other options). To print straight from PageStream I set up postscript output, print to device tcp:192.168.0.50/9100. In TurboPrint, I used the HP Color LaserJet 5 driver and set print to file with the same ip address. It's about as simple as it gets. It also allows configuration options to be set through a browser, and it works very well with IBrowse.
As far as the quality of the output, I don't think color laser gets any better right now. The printouts are absolutely top notch. Glossy printouts look as good as magazine covers. I've had mine for almost a year now and printed over 2 reams of paper with the original "low-capacity" toners. My black toner is still at 52% remaining, and the color toners are all at 74% remaining.
It's an expensive printer, but if you can afford it you can junk your inkjet and never look back.