Inspirational indeed, makes you realise what you can do with very little space and power (watts not grunt) really.
My I5 system is mATX based at the moment, but when the new ITX S1156 boards launch I intend to turn my machine into an mITX setup, the only issue I have is the GTX260 ...I have a Sugo SG05 that I have a E6600/Zotac in right now running as my media machine and server, but I'm not sure the 300w psu would handle an I5 under load and a GTX260 ...dunno, could be a bit too close for comfort.
I hope that when the new boards launch, there will be some more powerful mini psu's and also some new mITX cases aswell. I think 2010 is going to be an interesting year for miniaturised power