'94 GTP Leaking Coolant

Trying to figure this out. Have taken it to two different garages and have got two different answers. I cannot seem to find where the coolant is coming from. Smokes a little when running down by the water pump but can see anything coming out. After the car sits there is a huge puddle of anti-freeze under it, sort of middle to drivers side. When running the gauge is all over the place and the heat goes away as the gauge goes up in temp and the gets hotter as the temp gauge comes back down. The last place told me it could be a head gasket? They were just replace 30,000 miles ago. Any ideas?
:banghead:

Follow the heater hoses to the engine. One of them will go to a quick connect fitting on the intake. These are known to crack and fail, causing a leak right in the area you are describing.