The guys over at vmrefernce.com have just updated there VI3 reference card, having used the last version many times and always keeping a copy on my desk I would check out the updated version and print off a few copies for you and your colleagues.

The new version contains all the updated information form ESX 3.5 Update 3 so go grab a copy from here now: http://www.vmreference.com/vi3-card/