We’re not convinced that traveling with or shipping an iMac is something most people will ever consider, but then again, for certain professional reasons, it makes a lot of sense. That explains why Tenba is one of a handful of companies making travel cases for the all-in-one machines, including its Transport Air Case with Wheels ($655). This edition is for the newest 27” iMacs, but you’ll actually find more than 30 sizes on the company’s…