Here's a tutorial that shows you how to make "stackable" tower Gridseed rig with Raspberry Pi and CGMiner, probably the most efficient way to run your Gridseeds.
For downloads and full step-by-step tutorial, go here:
http://highoncoins.com/litecoin-rig/how-to-make-stackable-tower-gridseed-rig-with-raspberry-pi-pre-built-cgminer/
