Thought I'd come back to those who asked.
Logic 9 much more stable with VI/VE. Things seem quicker too, though that is subjective.
Next week, I'm building a system for a client which will have Snow Leopard, Logic 9, all the usual goodies and, here's the thing that I hope will be a killer, 512 GB of SSD. Things look very promising with it so far and I'll report on progress with that in another thread when all is well.
I have a second client looking for a similar setup so that will be three systems I'll have built (my own and the two for my clients). I should have a feel for everythig then.
One thing I haven't had a chance to try out yet is the new VE Pro. I'm going to order a copy but it's too soon to put that onto a client's machine. Again, I'll report back when I'm done.
Pete