I'm considering upgrading my bootcamp partition on my iMac from Windows XP to Windows 7. I've had a copy of Windows 7 for a while, but I've never gotten around to installing it, since I only use Windows XP for games. This Windows XP installation is starting to get annoying (for instance, it now only pretends to install the Bootcamp 2.2 update, and the graphics card drivers in particular are getting out of date). I presume it has reached its half-life. Rather than re-install, I might as well upgrade.
What problems might occur when doing this, particularly for someone who isn't very familiar with Windows? Will I need to re-install my applications? Are there any settings I should make a note of? Are there any other easily-overlooked banana skins?
Obviously, I'll have a full backup; I'd just like to know what to do to avoid needing to use it!