Hi
I'm using the T650 but haven't had a load of time with it in Sonar yet - I'm having re-install issues with Dim Pro following an OS upgrade. I was considering the 10 point touch screen and was glad I didn't take the plunge because my mobo will only support 2 point touch....
So, buck for buck the T650 seemed to offer me some of the advantages of touch with far less outlay.
DaveA