Glass shelves, and probably cantilever shelf supports, no way I'd take a chance with the weight. Just take out the drawers on the bottom, and as many shelves above as you need to fit the kegs sitting on the bottom of the fridge. And maybe still have a shelf above for bottles and cans.
Primary 1: Lonely
Primary 2: Lonely
Secondary 1: Orange Mead (Made Jan. 2013)
On Tap #1: Stormy Monday IIPA
On Tap #2: Mild Thing English Brown
On Deck: Thinking....