I believe the factory roof rack will only carry a weight of about 75 pounds.
Some of the aftermarket racks will carry more, if you want more weight capability. There are many "air-flow friendly" lockable containers that will attach to the rack with locking latches.
The factory rack is best for bikes/skis and making the CR-V LX/EX look better in my opinion. The CR-V SE looks better without the rack due to the additional paint work. A COLOR MATCHED rack would look great on the SE, anyone done that yet?
SALTMAN
http://www.bsalt.com