One more thing I'd recommend for that system, Moonie- be sure to get a different heatsink/fan - the stock one on those chips can be horrible to install.
I've had great experience with the Zalman 9700LED (but certainly not anything for a Shuttle case- it looks big in my full tower case), but a heatsink/fan I've recently used for a couple builds is Arctic Cooling Freezer 7 Pro (probably too big for Shuttle) and the one I'm using for the new Beast,
the Thermaltake Max Orb.
For a Shuttle case, you might want to consider this, the
Zalman CNPS8700 NT