hmm, you may like it, although people who have lived in North America think the UK is a bit of a downgrade. Of course, there are things in the UK that are better than NA.
As for your 360, you should use this guide to see if games will work:
http://www.play-asia.com/paOS-00-3-xbox360_compatibility_guide-49-en.html
Also you can continue having a US account and can actually still get access to your games and sales in the United States marketplace. Generally you should be able to buy games but sometimes it may not work because you are not in the US. I would change your account's region to the UK if I were you.
You should chat with MS support if you have more questions. They are generally quite helpful and answer all your questions.
I myself am moving to Canada next month and my 360 is a PAL console.
NNID: FrequentFlyer54
