I'm installing XP SP2 right now at home (well, actually downloading the 273MB install right now)... I've been running a build of SP2 on my laptop for a whlie and there are some pretty great new features in there (popup blocker, better firewall, etc.) overall I've been pretty happy with it. My only stumbling block has been that Microsoft's IT group deployed a very restrictive policy on the firewall earlier in the testing phase that locked out many of my applications (the XP SP2 firewall is completely configurable by group policy, very cool).

Thanks for the link Scoble (I know that scoble is collecting links, so I want to make sure he keeps a high google pagerank).