[V8] 93 4.2 oil leak

[swett at comcast.net]

Hello V8 heads,

I'm having some trouble finding the source of a pretty large oil leak on the drivers side bank of my 93 4.2.  Not being very familiar with this engine yet, allow me to ask for your expertise.

This leak appears to be coming off the back corner of the head, at the head gasket.  Is there a distributor gasket that could be blown sending oil down along this route?  I thought I've heard or read of somebody else over the years experiencing this leak.  It just doesn't seem to me that a head gasket could leak oil at this rate.  I'm hoping that either my V/C gasket is leaking or perhaps something at the distributor.  Car has 100k on it.  

would love to hear about any similiar symptoms of this nature that you've seen before.

Thanks!
Regards,
Allen 
Too many audis to list.