Tranny? or something else?? HELP

I have a 1996 Ford Taurus GL. Just recently it has been doing this:

I can shift into any gear, no problem...drive up the road a bit, stop, the car acts like its in neutral....doesnt move. Wait a few minutes and it sometimes "bangs" into gear, sometimes "pops" into gear gently. Took it to the Transmission guys, they said not the tranny. Once in gear..no probs.

I can put the car up into park and back down into drive, can hear it shift into gear, take my foot off the brake....revs like its in neutral. They did the tranny tune-up, checked the sensors, etc. found nothing, tested the fluid for metal...none.
Anyone have a clue? I also have had probs with the front end...vibration in the brake and gas petal, intermittently, bucking, possible warped rotor? can hear what sounds like the brakes rubbing and rumbling when braking downhill, intermittently.
Have not found anyone with quite the same prob.

hello im haveing almost the same problem its like the car shifts in and out of neutral but i have it in drive then it like slides back into place .
and when i hit the gas its like the engine of the front end jumps up and once i let of the gas it comes back down. i have a 98 SHO can anybody give me some ideas of what could be going on here

go to dealership and give them these numbers:

Make: FORD
Model: TAURUS
Year: 1996
Service Bulletin Number: 983112
NHTSA Item Number: 607407
Summary Description:
SOME VEHICLES MAY EXHIBIT AN INTERMITTENT NEUTRAL CONDITION AFTER DRIVING AND COMING TO A STOP. *TT