To address the codes and in getting a tune up done, I've got the following planned for next weekend:

New cabin microfilter
New Fuel filter
New Oil Separator/Crankcase Vent Valve/PCV valve
Cleaning the ICV, MAF sensor & throttle bodies
Crankcase/oil system cleaning w/Berryman's B12
Intake valve cleaning w/Lubro Moly Ventil Sauber
Fresh Oil & Filter change
VANOS Seals replacement (My X is the I6)
Valve cover gasket replacement
New plugs (NGK Iridium)
New boots for the coil packs

New front brake rotors
New pads & sensors all around
Brake fluid flush

Air filter and both O2 sensors were replaced by the dealer less than 1K miles ago so not touching those.

I think the new plugs, new boots for the coil packs, new fuel filter, oil separator, VANOS seals and cleaning of the MAF sensor should all contribute to ending my woes with the SES light and my air/fuel metering probs & this new misfire/low fuel code. I've also confirmed that the intake tract doesn't have any cracks but once I pull it all out, I will double check.