The Marmoleum installer ought to be supplying you with full service, including this transition item.

There are various ways to achieve that type transition. A few of the standard methods are shown the link below. Here is a link that might be useful: tile to wood / laminate transitions

Nothing wrong with white oak - I love the stuff, especially if it is quarter sawn. Quarter-sawn white oak has interesting rays in the grain like that found in old English oak. The link shows a photo, I know nothing about the website and it is not an endorsement. Here is a link that might be useful: Photo

Gsciencechick, I love the creamy off-white grout that goes so well with your cabinets. I love the blue tiles and the blue refrigerator! I love the white and blue theme! I forgot what paint color you used on your cabinets, could you refresh my memory since I am finally at the stage that I want to paint my cabinets or get new doors.