This is great, thanks for the input. I'll be sure to do further research into these places.
Silmarwen : No i wont be there on the 21st, but i'll check out Toji Temple.
No, big commerical/water park aquarium are not particularly interesting for me.
2300 YEN Bus from Tokyo to Osaka is crazy cheap! But im willing to pay extra for a Shinkansen train ride experience!
Can you suggest the best method for foreigners buying mobile communication and internet data? Ideally, I want to buy a SIM with internet data and use my Apple iPhone for map navigation and calls. But I hear its quite different over there, you'll need to buy both Phone and plan? And Free Wi-Fi hotspot is scarce.