I loved Snow leopard, and I've been warned before that you should always wait until the first service pack is released before moving over to a new OS (particularly true for MS stuff)
I'm finding that my laptop doesn't come out of "sleep" mode by moving my mouse anymore (it takes pushing keys on the keyboard.) also, it comes out of sleep slower than when I ran Leopard.
Plus, when using safari (I use an attached MS USB mouse), I've randomly had both mouse buttons change to a "right click" - so no left click and only rebooting my mac fixes it.
You know what they say, it's the little things.
Roll on SP1
🙂