I never upgraded personally, buts that's mainly becuase it occasionally messes up your windows installation, and I don't want to risk having to restall all my stuff. Besides, I have a feeling I'd just end up diabling all the new features anyway to keep any of my programs from having compatability broken.
no problems at all used Nlite to combine default win xp install with SP2 and i have to say it works great PS. could someone post or PM me with link to that patch for TCP? or is it available from windows update page?
I don't see any reason not to install the SP2 right now, and about the TCP connections issue, even if you don't patch it, the only difference will be that P2P programs will just take longer to connect to peers at the beginning, but after a few minutes it'll work just as good as with SP1.