Contiental Ultragatorskins are available in 27x1-1/4 size. So are Specialized Armadillo All Condition tires. Either of these flat resistant tires are good for touring.

The Nashbar tires are pretty cheap. Probably similar to what you can get at Wall Mart. Yes, wally world still sells 27 in tires though not 700c - at least not in my town. Wall Mart also sells 27 in tubes (Shrader), which are as good as anyone else's.