Yogalu

Okay, as a novice to all this technology, please tell me the "best" set up to get the best experience - and where do I buy the Vantec Avox? I also was wondering if I had to have a video ipod (recently bought a 2 gb ipod, no video and need to return/exchange it soon) and wondered if I had to have the video ipod instead to watch videos. Also, debating between the D3 and Kenwood 7100. Thanks!