connect di on the lpd8806 strip to arduino pin 11, MOSI. connect ci on the lpd8806 strip to pin 13, SCK. MISO, pin 12, and SS, pin 10, need not be connected, though pin 10 shoulf be configured as an output to avoid having the arduino's spi interface go into slave mode.
"If I had known it was harmless, I would have killed it myself." - Phillip K. Dick, A Scanner Darkly