Has anyone used or even heard of the Vanguard line of tripods and monopods? I've been wanting a camera support of the 'carbon fiber' variety for a long time but they have always been so expensive. I've finally found some carbon fiber versions which might be affordable. Well I picked up a Vanguard monopod yesterday, which is carbon fiber, even though I never heard of this brand. I am now considering trading my aluminum Bogen for a Vanguard carbon fiber tripod. What does everyone think?