Rigid Carbon Fork for my Monocog?

[Inspiribomb]

I love my Monocog flight 26'er, and want to bling it out a bit (maybe drop some weight too) with a carbon fork. I've been looking into the Bontrager Switchblade and others, but was wondering what kind of changes I could expect to the ride/handling? Would it be a significant weight savings? How durable are these things? Should I change from a 8" rotor to 6"?

What are the critical measurements I have to be concerned with (like tube diameter)?

Thanks!