Tamiya is /tah-MEE-uh/ and Aoshima is /aah-oh-shee-ma/.
Not according to Scott Hard's podcasts at Hobbylink Japan!
Well, I can't speak for them, but I have a master's degree in Japanese, lived in Japan for over six years, and have been working as a professional translator (J->E) for almost 20 years.
I'm pretty sure *I* am right.
Tony