> Filling the filter first is a new one to me.  Ooops.  Is this very
important?

well ... sorta. it just gives the engine a bit less time to run without any
oil coming from the filter. and it gives you something else to do with your
hands while you're waiting for the old oil to drain out. :)

yeah, it's a good idea to do it. and also be SURE to take some nice fresh
clean oil and rub it on the rubber gasket of the new oil filter. this
prevents the gasket from sticking (before the filter is snug) and bunching
up ... which could cause a pressure leak (at the gasket) when the engine is
cranked.

hope it helps.
joel