I am looking to create a USB flash drive that I can put multiple LiveCD iso's on and select which boots from startup. The ideal candidate supports linux and windows based iso's, and is relatively simple. It also must have some reasonable process for adding and removing iso from the drive/list.

Things that I'm not looking for this specific question:

UBCD or other swiss-army knife livecd's. The point is to boot any one of multiple CD's, not to boot a (certainly useful) utility CD. Installing a single LiveCD to a USB drive. I'd like to have multiple iso images, selectable at startup.

I don't have a specific purpose in mind, possibilties include a single drive with a knoppix variant, ubuntu desktop, UBCD for dos, UBCD4Win, the Offline NT Password Cracker, etc.

Flexible and easy to use are the name of the game!