I think that your approach sounds pretty promising. If I were in your shoes, I'd probably do what you are considering and go from the DirecTivo's HDMI output and the 2910's DVI output to the 1070's DVI switching, then from there to the Mitsu's HDMI input. One thing you might try while waiting on the 1070, however, is comparing the DirecTivo's component and HDMI outputs. Some people have found that the current generation of HD equipment using DVI often exhibit no better picture quality at the DVI output than they do at the component output (this mainly for upconverted standard definition material, and in some cases people have reported preferring the component output), and I don't know if similar results have been found with HDMI-equipped satellite receivers like the DirecTivo. If the HDMI output is clearly superior (as it may be - I did some research on HD cable boxes earlier this year, but none on satellite), then it just confirms that your initial plan to use the 1070's switching was best. If the DirecTivo output looks equally good from both component and HDMI outputs, you would have two alternatives: use the DirecTivo's component output and the 2910's HDMI output to make a direct video connection from each source to the TV (which would avoid any uncertainty about video switching), or using the 1070's DVI switching (which would offer the benefit of never having to change the TV's input, making the setup easier to operate).