Well, close two 2 weeks, using the box as usual.....

I like...no problems, nada, zilch, an occasional look into the pfirewall.log file, tempted to claim peace of mind! I have taken a short break from playing with the network set-up, which is actually a good thing. I now have a baseline in terms of the boxes behaviour in its standalone config. This will help in nailing any network issues, should they arise.

I highly recommend giving XPSP2 RC 1 a try...it won't break your box, it won't break your box,
you are getting sleepy, it won't break your box....

Attached is a word document from MS that explains some of the networking features a bit more in depth: