Don't be to hasty say now you don't need a ratmandu, it is a completely different creature and as much as I love my res-c, the grip on the rmd might be one of the most comfortable I have ever held. If you get the chance to handle one you will see what I mean.
There's a difference between needing and wanting. Now I don't feel the need for one, but I will definitely be getting one at some point <img src="/ubbthreads/images/graemlins/thumbup.gif" alt="" />
If the RMD's handle is anywhere near as perfect as the RS handle, I'm sure I'll love it!