I've got nothing against Mavic, as I've owned several sets of their hoops, and still have some, but I certainly think they're over-priced, if not over-rated. Depends on your riding. I like to abuse my gear, and I don't like wheel truing. Rhynolites hold up to an incredible amount of abuse. Fos skinnier XC, I'd stick with my Mavics, but for any tire over 2", I like Sun rims.
Oh, to get back on topic, check
www.wheelworld.com, they seem to have some good deals too. I think I even got some Mavic wheels from them.