Windows XP Service Pack 2

I downloaded the full install of Windows XP Service Pack 2, 272MB, when it was released about two weeks ago. I waited to install it as I wanted to waiting until the screaming died down from the initial people installing it. I monitored a few security lists for a while, but didn't hear too many bad things about it. Today I finally installed it on my laptop computer. The first thing that I received, upon boot-up, is the new Security Center that wants to enable the Automatic Updates. It also turned on the Windows Firewall by default. It reported that I had an active virus scanner (TrendMicro Internet Security 11) as well. I disabled the firewall as the aforementioned TIS 11 provides a firewall. I also disabled the automatic updates as I like to manually get the updates and usually hear when a new one is released. Besides, why have another background process running and eating up memory and CPU? The wireless setup is more refined with the SP2 and it's suppose to also have a built-in Bluetooth utility, but I've not found that yet. I'll post any serious problems I run across though. Have you installed it yet? What have you found in the way of problems?