What supplies do I need to add LED's to my model?

What type of electronic supplies do I need? Could somebody tell me how to do it step-by-step?

I have found this so far.

http://www.google.com/search?q=cache:mCtxBNPxFrUC:www.culttvman.com/assets/Model_Lighting_.pdf+how+to+hook+up+LED%27s+to+a+mo del+car&hl=en&ie=ISO-8859-1

I only know enough on the subject to speak in vauge generalities. :( I know you need a power source and some lights and some wire inbetween... ;) But I don't know how to use resisitors, and that's why I burned out all my LEDs one by one... :(

Nice article, though. Here's a link to it in PDF form:
http://www.culttvman.com/assets/Model_Lighting_.pdf

Nice find guys, these are going to help me as well:p

Now that was cool!! We had a guy show-up last year at one of our model shows with a police car that had 15 lights flashing like the current police strobe set-ups and it was an awesome site sitting there. His explanation to those of us listening (all of us) was a bit too detailed for a pointer to take home so this was the best tip I've gotten from this forum yet!! Now, where is that Crown Vic model at......
:D :D :D :D :D :D :D :D

Seems to me the best place to hide the electrical bits is in the trunk. Some kits have engines, some don't; but I have yet to come across a 1/24 will full trunk detail... ;) :p