I almost bought a 3.5 inch 500gb drive for 120 or so but I'm glad that I didn't because I found power specs and 3.5 seems to suck SOOO much more power than 2.5, not to mention that 2.5 are supposedly more rugged for mobile use.
Since I have not been able to get ICE loaded onto the stick, I have installed a few different distros and currently have Puppy Linux installed. Sounds interesting since it runs totally from memory (file system and all). Does ICE do anything like this? You mention copy to ram so I think it may.
I was in Layton visiting a niece and nephew. I have a lot of family in Utah. My sister lives in Park City and she wants me to drive with her to Sacramento to my other sister's house for thanksgiving. So I may be coming to utah in a few days to do that and would be there before and/or after thanksgiving.