Summary: Overall this is a great printer. Setup was very easy, connected it to my network and I can print to it from Windows, Mac OS X, Linux and even Mac OS 9. It's fast, quiet and the print and colour quality are outstanding (far better than I expected from a $150 printer). It prints double sided without issue. The only real downside is the cost of the toner, a full replacement set of tones (four colours) cost more than a new printer which comes with a full set of toners.
Pros: Easy Setup, Prints Quickly, Very Quiet, Good Colour Quality, Good Image Quality, Built-in Network Support, Duplex Printing, Postscript Support
Summary: Excellent printer. Toner is expensive, although Lexmark has an exchange program for empty catridges. No quirky interface and simple to use. Duplex (C543dn) works good an not really any paper jams. It makes some noise on boot up, but while printing its quieter than some other laser printers. This machine is only used for some color print jobs.
Summary: Picked up on sale from ncix. Hard to argue with a color laser for $150. The network was simple to setup, easy to add to all my computers. Duplex is a great feature for double sided. Black toner is slightly more expensive per page than my lexmark black laser. My only complaint is the toner cartridges install from above like you would on an inkjet. When removing them/installing them, toner can fall out of the dispensing hole. Laser toner makes a mess.