Chopstix Jr MK2 ( or W.I.P, work in progress!)

Sorry For the flash. cant turn it off!

First of thanks to all for inspiration, and ideas. I spend far too long looking at other peoples work! This is my forth robot, Started with the " start here " robot ( great fun! ) and built a few other wheeled robots, using both Arduino and Picaxe. After being greatly impressed by Odbot's Chopstix ( fantastic machine. I cant even imagine the work that went into the build, and programming) and Lumi's chopstix Jr, I thought I would give it a try. Walking robots are much more fun, and much more impressive! So far the build consists of a small pcb, onto which I have soldered the Nano, along with a few headers to attatch the servos etc. The plan was to use a 7.4v 800Mah lipo ( rescued from crashed helicopter ) , going through a voltage regulator, to give 5 volts. There is a seperate feed to two rows of headers, + and -, so they dont take there power via the Nano. Im hoping this will work, but in a little worried the heat generated by one or two stalled servos will burn the voltage regulator straight through the PCB. Im very open to suggestions if people think this is a BAD idea. Work in progress, and Ill keep everyone updated.