Shanghai : must do.., dont miss.., accommodation tips...

Hello everybody...

I went through many hard weeks of waiting and hoping...but finally:

I got my this years work visa for Tibet!!! ...and will go back to Westtibet to restore a monastery. The most beautyful monastery i know!!! Will leave to Lhasa next week!  I am so happy!!!

In the first week of September, on my way back, I will have some days stop over holydays in Shanghai!

I want to ask all of you who know Shanghai:

Any tips what I should not miss to visit, eat, see, buy... in and around Shanghai?

Anybody who knows a good, not to expensive hotel or hostel or guesthouse...(I dont need luxury) in the city?

Thanks for any hint!

Gesang