Trading US Options in the UK

[kvhutch]

This may be similar to a recent thread by J0hn, and I've previously asked this question in another section before coming across this board (aplolgies for the cross-post). Basically can anyone tell me the implications of trading US options from the UK from a tax perspective? For a fuller description please see

http://www.trade2win.com/boards/showthread.php?p=176020#post176020

Thanks