Any synth shop in Tokyo or Osaka?

Ok; already know some places selling synths (like Musicland, for example); but was wondering if anyone knows of any shops focused only to synths / dj equipment/ keyboards... that kinf of stuff; I would be specially interested if they had 2nd hand synths, but any synth shop advice would be great.

Hi - near Ochanomizu JR station, down the hill towards Jinbocho is a street that I love to go to for new and used synths/DJ/etc. In Akihabara is the Sofmap "Music Creator's Shop" (on the 5th floor) that has great deals on new & used stuff, Lastly (that I know of) is the area near Tokyu department store in Shibuya, several stores there including one historical one specializing in Moog, apparently the owner was a friend of Bob Moog! - anybody know any other places?

Thank you very much; it�Ls very helpful; I�Lm going to Tokyo in a month and I really want to bring something back home :)

I found an old post of mine with better info so you don't have to search around too much --
in Ochanomizu - "Ishibashi" and several other stores
in Shibuya - "Music Key" (not the Moog shop but that one is just around the corner)
In Akihabara - Sofmap Apple store, "Creator's shop" on 5th floor, also "Tomoca" shop on 2nd floor of "My Way" complex just outside the JR station is good for smaller accessories and live sound gear
In Ginza - sometimes the "Yamano Music" store has good sale prices and special deals on their 6th floor