I don't really need one to do much else, since I have a pretty powerful desktop. Just need it for field use for adjusting stuff, so small and medium ruggedness are good. Guess I don't need a removable-disk drive. I am trying not to get sucked into the better quality computer gear that would have a much wider range of utility, I'll wait until my desktop is toast-ish for that. I don't think I can "buy and try" around here, not since I'd have to install software to know. Thanks for any insight (what to be wary of?, I'm on the wrong track?) or recs.