I'm with the others. I cringe thinking about painting nice oak woodwork. I also cringe when people want to paint brick, laminate, tile, etc. Other than that, I'll let the resident painters describe how to do it.
Don't forget everything goes in cycles. I know painted trim is "in" now as opposed to finished woodwork, but we also hear alot from people trying to remove paint from nice old woodwork. What goes around, comes around and the styles will change. Good luck.