It might be helpful to have some info about how to read a spec sheet.
LED Resistor Calculator
The calculator has helped me build some stable circuits that don't toast the LEDs.
ebay is your friend. Buy bags of parts there really cheap.
If you want to play around with computer control of...
Is this still alive? I just joined. I've been looking to buy one and my search ended here. I just like UV lights for rock collecting. I've also been playing around with computer controlled arrays of lights with Arduino boards.