I'll find a link for you when I get a chance, but there is an UV dye kit you can buy to add to your coolant.
You add it, idle the motor at operating temp for about 15min then check the system with a cheap UV light. Any leaks will glow bright.
X2 on the hoses, gasket and water pump. With the warmed up engine off, use a clean, dry rag and wipe under a hose. After each hose wipe, look at the rag for moisture (you might already know this!). Are they original hoses? Just asking...
OK.. I believe the pulley in the photos is the Crankshaft pulley, and thus I would say the crankshaft seal is on the way out, as you say.. I have to bring this in to a mechanic, as I'm busy with work on my grandma's house right now.. Do I just request the mechanic replace the crankshaft seal? Or should I have the waterpump done as well, or perhaps hoses? I am fairly certain the leaks are coming from only this seal, just as Jim says.
The crankshaft seal would only leak oil if that was the case. To determine if the pump is leaking you will need to thoroughly inspect all the hose connections and gasket seals at the water pump and the thermostat housing immediately above.