Building Gimp 2.0 on Windows XP?

Anonymouse asks: "Has anyone out there just had the urge to build Gimp 2.0 on Windows instead of using an installer made by a third party, hosted on a free web hosting service? It's probably fine but it makes me nervous, so I figure I should try building it on Windows instead...besides, it could be educational! Does anyone have any instructions/suggestions for building the source on Windows XP using MinGW and MinSYS? Keep in mind I have no experience with *nix, and my meek programing skillz only apply to Perl. Thanks!"