I had a good camera but because I was using the built in flash and everyone was sweating I got a lot skin glare.
I found a good to tutorial to remove it so I tought I would share.
I am not to happy with their end result because they make the portrait look flat. But I found that you can change the opacity to 50 on the brush and make it look better. The idea is to leave a little highlight to keep the natural glow.
I also played with the curves.
If you are going to do color correction, make sure you have a good CRT monitor, LCDS tend to be bad at color managing. But either way make sure you calibrate your monitor.