Just got back from Natural Expo West where I had the pleasure of tasting the best Vegan cheese ever!  It's called Daiya and should be available within a month in Whole Foods.  Some great Vegan establishments are already using it in their recipes including The Veggie Grille and Amy's uses it in their Mac n Cheese as well.  I tried nearly every Vegan cheese out there and was ready to give up on finding an adequate subsititute but this cheese is amazing, most people there couldn't even tell the difference.  Here's the wesbite so you can sign up to be notified when it's available.
http://www.daiyafoods.com/where.html

Yeah! I've tried to find it at my wholefoods, no luck yet. But there is a shop called Pangea near me that's supposed to carry it, and they're open to the public on weekends. Also a pizza place called Zpizza has a vegan pizza with Daiya, so want to visit. Going to a restaurant for my birthday coming up "Great Sage", and they're exclusively vegetarian/vegan, and feature Daiya. I'm still new at this, and I would rather have no cheese than yukky stuff, but am looking forward to some pizza!

Had it on a vegan pizza at Karyn's on Green in Chicago. Awesome! It was really tasty.