Added SP2, DEP=alwaysoff. Now what?

I had problems installing Service Pack 2, getting stuck in an endless boot
loop. I went to Microsoft's help site and changed my boot.ini file from
"OptIn" to "AlwaysOff". The help site then says this:

"Of course you should now look for updated drivers, install these whenever
they appear, and then test the driver by reenabling DEP."

What drivers, where? With DEP off I can now load to desktop fine. Am I all
done, or do I still have work to do before I can put this SP2 installation
behind me?

(My processor isn't one of those listed, but is an Athlon 64 X2 3800+)