Tony, just trying to repay you a tiny bit for the moutain of information you've given me over the years..

A forum topic with other options on upgrading the stock fan..

To get the most out of you DTivo, you'll need two lines coming from your dish. This allows you to record two shows at once. The best way to do this (if you have more than one receiver in the house) is to get a dish with 4 outputs. The dish that does this also preps you for HDTV and allows you to get the NASA channel. There used to be a really good thread explaining how to do this, but I only found this one, yet it still has all of the information you need.