I LOVE that episode as well! He gives his resign letter to Hammond and kisses her! WONDERFUL! Another great moment between the two of them, although very sad, is in "Grace" when she talks to him - or rather, the Jack O'Neill from her imagination - and kisses him.

When Pete first appears a few episodes down the line is sooooooooo anguish to watch! Because he seems like such a nice fellow, but, you know, he is NOT Jack, and Sam belongs WITH JACK! It's almost like Lois, Clark and Richard! LOL! Except I got a creepy feeling from Pete when he started to check out Sam's background on that episode...but they never brought that back again, so, I will have to wait and see.