The front diff leaking, check if it is the pinion seal of the cover. Either is an easy fix that you can do in the driveway.
The trans leak could be a bit more tricky to pin point, is it an auto or a stick? Check around the pan and lines if it is an auto, both would be 15 minute fixes. If it is an auto and the leak is coming from inside the bell housing, it would be better to let a professional look into it.
In all honesty, you are your own best mechanic. Cars are not really complicated devices and you can save yourself a lot of time, money, and aggravation by at least looking into things on your own first. You will be surprised how many of these little leaks and noises you could look into and solve yourself in under and hour and for $10-15 instead of paying $75/hr or better to a shop.
1993 Jeep Grand Cherokee Larado
1999 Chevrolet Camaro Z28
New Jersey F-Body Owners Association