Well mine finally sprung a leak too. Been smelling the not so sweet smell of antifreeze for the last week. Reservoir tank is still full. From the top I could see several spots where antifreeze had dripped into a small "dips" and dried on the front center part of the engine. Don't see any antifreeze on any of the hoses.
But I can't see where exactly it's leaking from. Oil still looks clean (not milky).

So basically, it's a small leak. Most likely from somewhere on the head gasket, right? From as cluttered as it is in there, I'm going to assume that replacing the head gasket is pretty expensive. So is a can of "leak stop" is my best bet? Any reccomendations on brands?

TJ, this UV die you talked about, is it just a liquid you add to the antifreeze? I've never seen it for antifreeze, just for A/C. Available at Advanced auto or the like?