iGary I echo your sentiments in that I miss getting design and marketing feedback from all the other guys I worked with at the ad agency, we had an open production area we called "the pit" which allowed for creativity and instant feedback...
I tele-video commute now and it helps bridge the communication gap. I bought a few of the guys at the agency iSight cams, combined with their T1 internet connections we get good results without much lag.
It's worked well so far, and is a pretty nice way to collaborate, but it's still not the same as being there.
On the other hand, working at home is great, I can get up and know that I won't have to be in my car in L.A. traffic for an hour and fifteen minutes to go 17 miles to get to the office...instead...I can walk a few blocks and be at the beach in Monterey Bay and catch another sunrise...