Cheers folks, its great to get home and be able to say that standing out in the middle of nowhere in the dark in the freezing cold is worth it! Sometimes I wonder... But the night time bug has bitten, if you like low light and night photography there's a bunch of nutcases on the web called 'The Nocturnes' that do absolutely stunning stuff at night.
The only trick to it is watching metcheck.com regulalry for a clear night, the last few nights have been perfect for this kind of stuff.