Putting Text in a referenced Cell

I have this list of about 1,000 things, which are on a wall in a grid pattern.
In my excel sheet I have a list of where they go, which are basically excel cells.. i.e. A1 is the top left corner.

What I am trying to figure out how to do is, is there a way that I can get excel to see "A1" and then put it in A1 of another sheet on the bottom. Thus I get the same grid I have on the wall, making a map of my things.

Also, I could just cut and paste, but the problem is I'm working on organizing the stuff on the wall, and if I do it the way I want to, when I move things, they should automatically be moved on the chart.

So basically I need it to look at a cell for the reference, choose text from another cell (which will be concaternated(sp) text), and then place it in the referenced cell in the chart sheet.

Anybody know how to do this?

Thanks!

Any help would very much be useful .