I'll definitely check the back of the heads out closer - looked the other day, thought I could see some on passenger side head, but tough spot to see... And I'll try that towel trick out - never thought of that one, but sounds like it would be effective.

Anyone have any ideas on the possibility of crankcase pressure? I say this because none of this really got bad until a couple of 50 mi trips at 75 mph... seems like too much of a coincidence...
Of course, if seals, etc are leaking anyway, it would just get worse even under normally slightly increased pressure caused by higher rpm's (I'm assuming the pressure might increase slightly before the pcv opened... Any ideas anyone?

Thanks for the input so far... <img src="/forums/images/graemlins/cheers.gif" alt="" />