Homebrew PCBs

Check out the following for a homemade UV exposure source:
http://www.thinktink.com/stack/volumes/voliii/equipment/uvlamp/uvlamp.
htm

If you don't need that much power, then look at the low-power UV 
offerings found at:
http://www.goldmine-elec.com/default.htm
Do a search for "UV".  Perhaps a stack of these small lamps will do 
the trick.

Lyman