Curious - do you not find the iPad overkill? In any case, nice - is that the iPad dock off to the top left?
I know you weren't directing your question at me, but......
I have pretty much the same setup, and I don't find the iPad to be overkill. It's a good complimentary device.
Is it necessary? No, but I did buy it to replace a secondary laptop which I sold the same day (an iBook), and it has replaced the iBook's purposes quite well.