Wheel Fix It. on Commercial Drive off Jordan Lane.
They get good feedback on HuntsvilleCarScene.com and are an installer on TireRack. Long as you don't take the wheels to them still on your Z they do good work
Seriously though the only reason I went to them is the feedback from the local car enthusiasts and the discount you get for being a HCS member. Without the discount they charge the same as the local Nissan dealer. Nissan will be handling mine in the future. Not going to risk taking it to another supposed local enthusiast shop. At least Nissan doesn't damage my vehicle when it goes in for an oil change. The reason I am hesitant on taking it to a dealer is my brother had a 350z Track model and they scarred his wheels up when doing the free tire installation for the early model 350's due to the suspension issues. Although that was not the local Nissan dealer and a friend has had his tires swapped there with no issue on his 40th.