Hi Reeferman,
I have trimmed Joga's nails at few times now (I bought a reptile clipper from petmountain, but I also understand from the board you can use baby nail trimmers just as easily).
I do it at night when she's most mellow and wanting to go to sleep on me. I hold a flashlight to see the quick in her nail (similar to dog's nail, where there is a fleshy part that comes down the nail). Trim off the very end when you first start so you don't cut the quick and make him bleed. If you trim them regularly, the quick will recede up the nail and you can get them a little shorter. Also, keeping tile on the floor of your tank can help keep the nails worn down once you get a jump start with the trim. There's another post on here where a board member posted a graphic of the quick in the nail to give you an idea of how it's formed - see if you can find that as well, as it is a good reference and gives you an idea of what you are looking at.