You won't be able to daisy chain tb monitors to get more than 1 monitor per TB port. The TB display and other monitors reply on the Mini-Displayport signal to show a video signal, so only one per TB port is possible.
Possibilities:
Someone could make a TB video adapter that adds a video card to the TB bus to add a traditional video screen (but this isn't available at present, so purely hypothetical).
You could use a PCI card TB adapter to put a pci video card in and get a second video display on a TB port.