How about using the Philips eW Cove EC Powercore? It can be used for either wall washing or cove lighting. In addition, it is dimmable.

Here is a link that might be useful: Cove Powercore

Thanks David, that looks very interesting. For the size I'm looking at (10' wide, lit from a height of 8'), how many of the units would you recommend, and at what spacing?

I would try to uniformly illuminate the entire wall.

That sounds lovely, actually. Thanks, I will contact Phillips next week to discuss how many units are required for this.

Since each unit is 1 ft in length, if the wall is 10.5 ft, you can use 10 units. If the wall is slightly under 10 ft, 9 units.

You will also need to figure out how to hide the lighting and tie in with the look of the rest of the room.
1. Find out where the ceiling beams are and whether they are parallel or perpendicular to the wall on which the map hangs.
2. Figure out how to construct the channel.

David,

Ceiling beams are perpendicular to the wall on which the map hangs. Walls are open to the studs, currently. We can easily add a nailer prior to drywall going up.

With respect to the channel, would this be some sort of trim work, attached to the ceiling, to hide the unit from the rest of the room? (Anywhere I can go look for inspiration?)

Thank you so much for your help with this. I'm really excited about how this will turn out! Here is current picture; I will try to remember to post a 'finished' picture once lighting and map are in place.

Here is the wall; loop of cable hanging will be what provides power to wall wash lights.

Umm, make that parallel to the wall (sigh...nailers, joists, what's the difference?!!)

There are 2 options that come to mind.
Option 1 - light strip mounted in a channel, facing down. The light bars will be visible.

Option 2 - Construct a channel with a bottom lip and mount the light bars on the side, above the lip so that people cannot see the light bars.

Nb - drawings are just conceptual.

Top view. The nailers will need to be trimmed off and an appropriately sized channel constructed. Make a box?

As for some inspiration

Here is a link that might be useful: Some inspiration

Thanks!!!!! I like the option 2 and LOVE the inspiration pictures.