I know this is an old thread but I'm heading down the path of driving LED strips with my netduino and wanted to find some examples of how to do it.
My lights will be 12v which I will have to power outside of the netduino. It looked like the OP was going write a tutorial on how to use a netduino with SPI and LED lights but doesn't look like he ever came back and posted about it.
Would be really interested in some working sample code to look at.