I have been having a blast with the EagleUp plug-in. I draw the circuit with EagleCad, export with EagleUp to Sketchup, Add any components that don't show up and then Render to POV-Ray using SU2POV plug-in. I am getting some really nice finished products in my opinion. Here are a few of my renderings:
http://i227.photobucket.com/albums/dd238/jman_31/Electronics/JamAlongAmp-1.jpg
http://i227.photobucket.com/albums/dd238/jman_31/Electronics/MP3AMP.jpg
http://i227.photobucket.com/albums/dd238/jman_31/Electronics/JamAlongAmpwenclosure.jpg
http://i227.photobucket.com/albums/dd238/jman_31/MK%20Pro/Mono%20Knights%20Pro%20ST/rendered-1.jpg
http://i227.photobucket.com/albums/dd238/jman_31/MK%20Pro/Mono%20Knights%20Pro%20ST/MKProST.jpg