well if you can't find em locally, you can buy them here for $34 - 2 ball lock kegs, cleaned, pressure tested, but not re-furb'd (so replace your own o-rings for $2).
it was only $14 shipping to Nebraska. I pay $40 locally for 1 un-cleaned pressure tested corny, so for about $50 I got two on the net in just as good a shape, but without a half gallon of Pepsi in the bottom
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