I've got one of these in a super-cap form... ;D It's about the size of the BluRay in a box, but rated up to 700V and 2200mF! (military surplus store, last one that had )
That's just beautifull....50mW of 473 is a treasure indeed Is that a handheld?
Anyway, since we're talking about capacitors and coilguns on a laser forum, my dream device is a semiautomatic coilgun/rubylaser gun (swichable) with a predator-style triangle 3xgreen laser(>100mW best beam specs on the market and perefectly parallely alligned) sight, powered by at least one nice 10.000 microfarad cap (eventhough it might get a long time to charge up from batteries,and probably wouldn't last for more than 5 to 10 shots ) all in a nice futuristic pistol-phaser/pulse-rifle package...yeah When I'm gonna have the resources to build that and post it on youtube I could die happy(well...that and have a threesome : )