I'll probably purchase an LT 150 in the next few weeks and I'm giving a lot of thought about how to feed it. I've considered HTPC, but it has real drawbacks when it comes to using it to scale OTA and cable/DSS. I've considered using a progressive DVD player (I've currently got a interlaced Panasonic DVD) and DSS upconverted from one of the new generation of DSS HDTV receivers (such as the Panasonic). My final option is to stay with my current DVD player, and get an outboard scaler, such as the Crystal Image or Quadscan. A big plus would be that I could use this as a video switcher, which is important with the LT150's single input, and also pass through HDTV (when I get it). Has anyone tried an outboard scaler with the LT150? Is it much of a step down from an HTPC? Is it much of a step up from externally deinterlaced signals (which I could get from a DVDO)?