There's a discussion pretty much about this on this very forum:
http://cs.trains.com/mrr/f/11/t/264200.aspx
I suggest you check it out and develop you ideas and needs there.
Ed
My layout tables are about 40" high, and I have boxes stored under them which I would like to hide. I need to be able to get to them, however, because they are filled with rolling stock, scenic materials, etc. What is the best material to use for curtains and also, the best way to apply them so I can still get to the boxes? Thanks in advance!!