In addition to the ones I introduced the other day, here are some more bilingual maps of Tokyo.
The links below are to AMAZON US, meaning you can purchase them outside of Japan.
- Road atlas Japan 1:250,000, Hokkaido only 1:600,000 (Unknown Binding) by Shobunsha : http://www.amazon.com/Road-atlas-Japan-Hokkaido-only/dp/4398201041/ref=sr_11_1/002-3363308-1554428?ie=UTF8&qid=1177392502&sr=11-1
- Tokyo Metropolitan Area Rail & Road Atlas (Paperback) : http://www.amazon.com/Tokyo-Metropolitan-Area-Rail-Atlas/dp/4770028784/ref=sr_1_1/002-3363308-1554428?ie=UTF8&s=books&qid=1177393478&sr=1-1