have any of you guys ever been to japan for vacation?

the japanese club in my school, which is i'm a member in, is gonna go to japan on March 2013...that is 2 months before i graduate....

and guess what, i managed to get my parents to let me go..my dad said it will be his early graduation gift for me...YAY!!!!! *dying of happiness*

anywayz, do you guys know any store where i can buy like korean and japanese albums, posters, collectibles whatsoever?

my teacher said she will bring us to a japanese store where you can buy photos of any japanese group we want....i'm planning on buying pictures of boybands from Johny Entertainments...

then my sensei said, since she is also a kpop fan, she'll let us go buy korean group's albums, but the problem is i dont know where i can buy them....

the projected places we might go is tokyo, osaka, and kyoto....

can you guys help me? 

and one more thing...we'll be staying for 2 weeks....

we have to pay at most $3,000 for transportation, accomodation, and etc....so basically in that $3,000 everything will be covered.....so how much spending money do you guys think i would need to bring with me?