I have a Warrior Safari Roof Rack on mine. You can get a little creative with the mounts since it's a square tube rack. I have mounted mountain bike mounts and other stuff directly to it.
Warn you, wind resistance is a killer! Bikes and all are cool. But large items (hockey bags) and it feels like there is a sail up there. And if the roof is off... you get a lot of down wind that beats the snot out of you while you drive.
But the rack was one of the best investments I made. I'm lucky that I live close to Quadratec and could pick it up there rather than pay the expensive shipping fee.