You need about 28.5" of height for a standard cornelius keg, and the quick disconnects, plus the beer/gas line coming off the connects.
If your fridge has a freezer compartment, that is the 'problem' area. you have to bend that freezer shelf out of the way, without damaging any of the cooling lines...or you toast the whole fridge.
If you are not really handy, stick with the Sanyo, or get a freezer and temp controller. chest freezers work better/are cheaper than a frostless upright.
Primary: English Mild
On tap: Pale Ale, Lancelot's Wheat, English Brown Ale, Steam Beer, HoovNuts IPA
Bottled: MOAM, Braggot, Raspberry Melomel, Merlot, Apfelwein, Pyment, Sweet mead, Cabernet
Gal in 2009: 27, Gal in 2010: 34, Gal in 2011: 13, Gal in 2012: 10