I've never really been into digital photography up until recently when I broke down and bought an XT. I love it so far. My problem is every skate picture I've taken has been in natural light and never needed any more. I've been getting into sequence shots and a lot of the stuff I'd like to be shooting is in an abandoned warehouse. I've seen skateboard photographers have their flash set up on a tripod away from the camera, and until now have never wanted to know how that actually works. What would I need for this? A speed light, tripod, and what else? Also, speed lights will allow me to shoot continuous with a flash in manual mode, correct? Thanks in advance!