Not sure how mechanically inclined you are, but I would say check it out yourself before you spend a dime at a shop. Here's why. When you take it to a shop, your first pay for them to look at it, then pay for them to tool around with it, then pay their premium price for any parts they replace (they often replace parts that didn't need replacing, or parts that don't fix the problem)...
Chances are it is something very simple. Here is what I would probably do. Hop under it and see where the fluid is coming from. If it is hard to tell due to fluid all over the place, clean it all up, start it up for just a minute or two (don't leave it on NEARLY long enough to overheat), shut it off, and get back under there and watch it closely. Getting the fluid moving should have caused at least a few drips to show up somewhere.
Once you know where it is coming from, you will either see a simple problem (cracked/disconected hose) or a complicated problem (cracked radiator, leaky pump, whatever). If you find where it is leaking, and don't know what is causing it to leak, post back here and someone can probably help you out.
You will most likely only end up spending less than $50... good luck, and I hope to hear back from you on here before you take it to the shop.
1995 XJ Sport
4.0L I6 H.O.
Flowmaster 40 Delta Flow
RE 6030 3.5" Super-Flex lift w/ full leaf packs
RE SYE and DS
31x10.5 Dunlop Radial Mud Rovers