[kenmei]

airport limos (buses) are quite cheaper, you might want to look into one of them.

you may have a point with the citi accounts being seperate, my bank (where i work) has seperate companies from west and east coast. we can access their system but its a bit troublesome. but i don't forsee much of a problem, if anything i'd say open a citi "free checking" or something of the like with a minimum deposit stateside. then in japan, see if you can use/access the account at a citi bank branch (of course you can use the atm). Also another idea (not the safest) is bringing over cash and having them exchange it for you for whatever rates/fees.

hope that helps