>I do have an IBM KPD8923 which has an integrated track-point mouse (between the G, H and B keys) I use. However, it doesn't have anything like a mouse wheel so I still have to use a mouse.

Really? My two before Toshiba notebook had a mouse like you said (I did not know it's name until you said). It was excellent. I don't like notebook touch pads. You have to move your hands with touch pads, but not with track-point mouse. I loved it but can't find anymore. If you let to try a few days you'll like it.