I have an 07 SE. I removed the factory crossbars and installed a Thule system. I'll post some pics tomorrow or the next day. I am planning to buy a rotomolded sea kayak this year, and I'm getting the Thule rack that holds the boat on edge, which is the most stable for keeping it in proper shape, since they can warp. I don't think its collapsible though, and my feet and crossbars sit on top of the tubular rails.
Kayak racks all look goofy, but to me its more important to hold the boat properly, and I'll be happily cursing every time I install and uninstall the kayak rack. I have to swap out my bike racks all the time when I put my skis up.