I see thoes momentary freezes on my MacBook Pro but I
do not see them on my Mac Pro. I was in SL four
about 3 hours today and didn't encounter even one of
thoes freezes.
That's -very- interesting. This means that the freezes and pauses people are seeing with the 7300GT cards (universally, I might add) are directly related to... the 7300GT.
Or the Mac OS build? Can you check to see what your build is? Word is there is a newer build shipping than what most of us got initially (which was 8K1079).
I have low hopes for anyone over 2GB of RAM, however, due to the problems with PAE. I'm definitely looking forward to testing more.