I've been reading all of the A/C compressor related posts and I am still not sure what I've got going on. At idle my air conditioning is blowing hot, once I start driving it immediately get's cold. Do I need need a recharge or has something failed?

Thanks...it's damn hot here in AZ and I need my A/C!

 

Perhaps bad heat exchange through your front radiator. Since I have a similar problem (except mine doesn't even works), the front radiator is leaking affecting the heat exchange. So when your car is at idle, there is almost no cool air passing through radiator so your AC is hot. When you're driving, cooler air passes through the radiator cooling down the AC.

I might be wrong...But thats what I think is going on.