OK I fixed the probem, just realised that I still had my second monitor plugged in. As soon as I unplugged it the installation completed straight away.:razz:
I'm having a getting x64 to reboot after the installation. The installation bit completes then after a few restarts i get to a black screen with a mouse pointer and a bit of text in the bottom right corner that says "Windows 7 evaluation copy build 7100". At this point i cannot do anything...