Gray, Did you notice any white smoke before you did any of this?
If not, I would say its the cats and all the junk that was in the exhaust system from the "OLD" cats.....
As far as the moisture, thats normal on a good running engine....
I would take it on the Highway and try and blow all the crap out of the exhaust......In other words, run the pi$$ at of it....Always checking your gauges for any loss of oil pressure or overheating....My .02
Good Luck,
Allcruisen :imp :usa