Totem Cams, not the Totem Alien versions, are arguably the best medium-size cams made. And the most expensive at about $80 a pop or $72 each for five or more. They are gaining a substantial following---see http://www.mountainproject.com/v/totem-cams/107938119 which has links to other reviews, http://andy-kirkpatrick.com/blog/view/one_cam_to_rule_them_all , http://davidallfrey.blogspot.com/2011/09/totem-cams-aid-review.html ,
http://blog.oregonlive.com/climbing/2010/10/climbing_gear_review_totem_cam.html .

Rock and Snow had them for a while but stopped carrying them because Totem wouldn't sell at a reasonable wholesale price. You can order direct from Totem; that's how I got mine. http://www.totemcams.com/ .