You know who I think would be great for Reep's voice? David Hyde Pierce. He played Niles on the TV show "Frasier." He has that distinct, proper tone to his voice. What do you think?
I keep hoping it's Jason Carter the brave Ranger from the TV series Babylon 5. He is English and has the perfect bravado to be Reepicheep. In fact his character Marcus on B5 is nearly like the character of Reepicheep.
That's just it...no one would take him seriously and it would lessen the movie in my opinion. I know acting is required, but I hope they'll get an honorable person to play such an honorable mouse.