I'm going to town tomorrow to pick up a copy of SnowLeopard. To test it out before I upgrade I want to install it on a USB drive first, but have been searching the Internet now to see what size of memory it consumes during minimum install, some say 8GB is enough, others say more than 8 and even others say more than 10. Can I install SnowLeopard on a 8GB USB key?? To be more exact I would like to use the iamakey from Lacie in 8GB.