7800 Store.
I purchased tires through this store and everytime I need to go in for anything (ie tire rotations/flat tire), they are always very accommodating. I had a problem w/another store iwho rotated my tires and this store was so very helpful when I called.
They did the paperwork to get the lug nut thing fixed and even filled out the paperwork for me so they would be paid for the problem they did not contribute to!
I cannot say enough good things about the 7800 store. Kudos to you guys!