I've been SP2ed !
I installed XP SP2 on a few machines and I was surprised how smooth the installations went. No probs at all. Even my Norton AntiVirus updated itself this morning and is now monitored by the OS.
If you can, I suggest that you download the ISO from MSDN (for subscribers), it's a 486MB ISO !
EDIT: Looks like I downloaded the wrong install. The Network install is much smaller at around 200MB.