Slik is another company that makes psychotically affordable tripods, similar to the Sunpak. I have three of the Slik's for working with digitals. They are not really something you would want to put a substantial camera on, but for smaller digital cameras and dv cameras, they can't be beat on affordability. And generally
B & H Photo is a great place to find them. Consequently, if you are ever in NY City and are a fan of photography, you have to go the B&H for a visit, it is a thing of beauty. An amazing store run by Hassidic Jews that is just wonderful, I would explain it but it does no justice to how cool the place is. Check it out next time you are in Manhattan.