http://aeinnovations.com:8080/projects/etchtank/

http://www.kingim.btinternet.co.uk/html/pcb....#nav_image

http://www.qsl.net/k5lxp/pro...CBFab.html

http://library.solarbotics.net/technique...ldpcb.html

http://www.fullnet.com/u/tomg/gooteepc.htm

and all together (on the tune of Skippy the bush kangaroo) :

google.....
google.....
google, the search search machine.

LOL

But seriously : I had some great results with a simple inktjet printer (Epson Stylus 760...ooops... no advertising !) on sheets designed for overheadprojectors. Be sure you buy the sheets intended for use with an inktjet printer !
Sometimes it's neccesary to print the layout twice on the same sheet. My smallest tracewidth was 0.2 mm.