Well here is a thread that can help you with your choices http://www.hookahpro.com/forum/showthread.php?t=11029
And this thread can help you with choosing a vendor, it is the recommended vendor list on this web site and not only can you trust any of the sites on the list there is a discount code for being on the forum.http://www.hookahpro.com/forum/showthread.php?t=137
Now my personal preference is getting a KM, I love them and I want to be buried with my KM. I got mine from hookah-shisha.com, though hookahstore.com has a very nice selection as well. Now if you want something that you can travel easy with try the small Mya's they smoke extremely well for their size. As for shipping to the Uk can't really help ya on that since I live in the US.
Hope this helps some