Can I hang cabinets and shelves on metal studs?
From my research, it seems like snap toggles are highly recommended, and for your situation with metal studs, I think they would work since the approximate weight you are estimating is 60 lbs. Snaptoggles (aka toggle straps aka toggler bolts) claim to hold over 200 lbs in 1/2" drywall. 

I have yet to use them myself, so it would be cool if another member here can comment on them.

How did your project work out? Did you mount your cabinets? I am looking for similar info as I also just moved into a high-rise building and my apartment wall has metal studs, so I researching solutions to mount my tv.