Glad the info was useful. I have been to Amsterdam a few times and I always enjoy it.
There is a place that we went to on one visit which was a converted factory which is now used as a theatre/ event arena. It was a great night out too (we saw a show called Slava's Snow Show). I can't remember what it is called exactly but it is something like 'Theatre fabrique' . It would be worth looking up to see if anything was on there. This link might be useful -
http://www.holland.com/amsterdam/gb/
If you like snooping roundsome nice interesting shops then take a walk in the area called '7 Streets' (or something similar!). You can spend a whole day pottering about there.
Hope this is useful.
Shivvy