Heya
I know you were looking for something with buttons but the touchpad I'm using works really great with StreetDeck. All of StreetDecks gesture commands can be done on touch pad pause, stop, play, track forward/ track back, music, video, nav etc.
Depending on how you configure StreetDeck the far right hand side of touch pad can be used to scroll up/down very quickly or for a volume control and the upper right hand corner emulates right click. Since installing the usb touch pad (from newegg of course) I haven't touched my screen other than for dusting.
