Well, well well. What happens with Bilbao today?
Anyway, I live very near Bilbao (8 km), so let's start.
I recommend you to check this site:
http://www.mybilbaobizkaia.com/QueVer/QueVer.asp
It has a lot of information not just about Bilbao, but also the province, Biscay (in English), Vizcaya (in Spanish), Bizkaia (in Basque). Restaurants, bars, places to see in the coast or inland, museums, everything. Just choose whatever you want and then drop me a line.
I'm free in the afternoons so I may show you some places and, depending on how many you are (my car is very, very small), take you there.
And about camera shops, or shop I must say, the one is Foto Samar,
http://www.fotosamar.es
Cheers
Alfonso