I don't know that I have very specific recommendations right now :(
I do actually own a pair of whitins. They're pretty cheap on Amazon and have been holding up fairly well, but I've only had them 6 months. They're also very comfortable for my feet.
The only whiff of caution I would offer is that a lot of shoe makers in the barefoot arena tend to be newer companies and seem to be working out kinks. For example, I like the look of Groundies, but the two pairs I had both had the same sole and it cracked after a year of everyday use. The uppers were still holding up great.
