LR - I wonder if the 'slow typing' thing is FF related? As you are aware there is a lot of disquiet about the amount of memory FF 3.5 etc is grabbing. I have occasional 'pauses' in typing with XPSP3/FF 3.5.7. I'm waiting for the 'replacement' FF to sort that out.
As for the Google Toolbar

. I went through a spate of constant firewall reminders that it wanted to install DESPITE
1) Uninstalling it
2) Hacking the folder out of the reg
3) Ensuring I never asked for it.
They have now ceased. mercifully, but Mrs B's Laptop is still getting them despite actions 1-3