One of the great things about living in Akihabara - you get to see stuff like this on yer way to work. A few more K-On! cosplay pics at from Steven Nagata's (who lives in Akiba) Flickr Pool.
From The Western World.
What areas are you familiar with in Tokyo and where would you like to live?
I lived in West Tokyo when I first got to Tokyo which took over an hour to get to work. Then moved to Setagaya near Shimo Kita Zawa while I was at Amazon - very close to work.
Now live in Meguro which is quite convenient to get around.
You can see what sort of apartments I lived in and what sort of rent I payed in the Tokyo Apartments article.