Hello, I am about to buy Logic Studio 8, but I have some questions. I will be buying this through eBay so I can use my Live.com offer. The guy that I am buying it from lives in the UK, and he has the UK version. The model number is MA797Z/A, while the US version is MA797LL/A. Now my question, is there a difference between US and UK version, such as customer care and such??