I saw a magazine ad today for Antec's ISK 300 and it rekindled my interest in building a PVR. I have built several systems and have Beyond TV 4 running on my main system now. However I am TOTALLY IGNORANT in the world of Mini ITX. I want to build a PVR box who's ONLY function is recording/storage/playback of TV broadcasts. I have Comcast digital cable(NOT HD). Other than a 500 GB hard drive everything should be minimal/adequate. No dual SLI or 20 ghz CPU configurations need apply. Does anyone have any suggestions? Maybe(probably) this type of build has already been covered in another thread. Link?