How to change my Apple ID for iCloud?

Hey there,

I have a simple enough question. When I originally signed up with Apple, I was using my Gmail account, so that became my Apple ID. However, I've been slowly migrating off of Gmail as I much prefer my new Apple email address (@me.com). For a whole host of reasons, including my disapproval of Google's latest turns in general, I'd rather move completely to @me.com than stay with Gmail.

So, en bref, how do I go about changing my Apple ID? I'd rather be identified with my new and shiny (and sparkly) Apple email, @me.com, than Gmail.

Is there any way to do that?

I know I could just keep Gmail for the ID but I'd rather really just eventually wean myself off of it.

Thanks for any info.

Nat.