Wal Mart, Lens Crafters, and America's Best Eyeglasses are all pretty good and fair priced. America's best usually runs the 2 pair for $70 deal if you have them near you're home.
It amazes me how much glasses cost at a b&m store. I only get $125 every two years for a pair of lenses with my insurance. I use that for sunglasses and buy cheap glasses for reading/driving here.
Also, check out those bulk places (Cosco, Sams Club, Bj's) if you have a memebership.