I currently have a Infocus SP4805 projector. I am receiving OTA HD through a Panasonic DirecTV OTA receiver. I want to make an old 850Mhz PC into a HTPC. I read in a thread several days ago about being able to not only use my PC as a HT but also as TIVO with the ability to record one movie while watching another and the ability to stop and rewind the current movie I am watching. I am looking for what kind of hardware and software I will need to accomplish this. Also, any suggestions as to what products to buy and not to buy would be appreciated.