Pinkish reddish leak

I have a 2003 jeep liberty and I noticed the other day when I remote started it that there was a drip. I checked to see the color and its coming from the middle of the car and its a pinkish reddish color. I am thinking its the transmission fluid or the power stearing, but leaning more towards the transmission. Is this a real seious job for a mechanic or is it just a replacement of a seal. Could it be the transfer case?