I am going to Tokyo in a couple weeks and my hosts want to put me in a $800 per night hotel. They may pay for it, but in case they don't, I think that would be a bit high even with my expense limit. I can find quite a few Marriott, Hilton type hotels around $300 on the Internet but am not sure about their respective locations. Any suggestions for a decent hotel coveniently located at the business district????? Thanks.