Zeke,
I ordered from them, no problems whatsoever. Stuff came cold and on time. Their prices seem a bit higher than most places but their shipping to CA was cheaper in my case than most places on the east coast.
You might want to look in specialty grocery stores in your area. Around here there is a chain called "whole foods" which carries Grande. You typically won't find it on the shelf as a loaf. Look for the cut up cheese and the printed "butcher" label should say whether it's grande or not. $4.99/pound seems to be the average retail rate.
If you live in the SF bay area, CA, there are a few of us on here that are going in on a group purchase in January. we're talking 5-10# each. I think that's 2 full loaves.
