There aren't many, if any, decent and affordable tripods for DSLR's. The best one is the Vinten Blue, but they're around $1200. So now Sachtler, the Cadillac of brands, has new and semi affordable solution that's supposed to be decent. $535.
http://www.sachtler.com/us/ace.html
http://www.sachtler.com/us/ace.html