How's it going Mike (OP)? Are you getting anywhere?
There's lots of good advice here and I'd still favour a dual boot.
That's what I have done and I'm loving it, although I'm spending less and less time in Vista.
I still have my games in Vista, largely because I read some people were having problems with Steam in Windows 7 on these forums.
This will no doubt get sorted out but illustrates why a dual boot is a good idea at this stage.
The gparted tool is easy to use and once you have got your partition created the dual boot setup is also easy to do.
As I said before there are step by step tutorials on this and other tech forums. If you can't find one on here you could google it and find one you like.
best wishes, John