Arduino Project building material?

Hi,

This is my first post ( new username ) I'm wondering if there's a kit, or a set of easy to use prototype building system to use with arduino ( or any microcontroller )

Something like lego, but the more advanced (adult) version?
Thanks!

You could take a look at the "bricks" here
=brick&s[title]=Y&s[short_desc]=Y&s[full_desc]=Y&s[sku]=Y&s[match]=all&s[cid]=0]http://yourduino.com/sunshop2/index.php?l=search_list&s[search]=brick&s[title]=Y&s[short_desc]=Y&s[full_desc]=Y&s[sku]=Y&s[match]=all&s[cid]=0
Still requires some thinking to hook things up and write some code for them.

CrossRoads:
You could take a look at the "bricks" here
=brick&s[title]=Y&s[short_desc]=Y&s[full_desc]=Y&s[sku]=Y&s[match]=all&s[cid]=0]http://yourduino.com/sunshop2/index.php?l=search_list&s[search]=brick&s[title]=Y&s[short_desc]=Y&s[full_desc]=Y&s[sku]=Y&s[match]=all&s[cid]=0
Still requires some thinking to hook things up and write some code for them.

I can't seem to see the link? Thanks!