Is it possible to be auto-forwarded to the classic server when one tries to connect to the DM server and it's full? Is this something that you'd be OK with, quadz? If this isn't possible, or isn't something you want to see happen, is it possible to give them a message like, "DM server full? Try the "classic" server instead!"
(BTW, be careful what you wish for: If I did try it, I'd probably redirect to my favorite server instead, i.e. vanilla. )