Well guys, I bit the bullet and jumped ship and went over to the dreaded Tivo with a lifetime sub dark side. I bought a Tivo PremierXL with a 2TB internal drive from WeaKnees, and soon I'm also adding a external 2TB drive to it. Yep, soon to have 4TB total!
I finally had enough of the all CM-7400 shortcomings like it's constant sluggish behavior to remote commands and all it's other operational BS. And now that it's a confirmed "Orphaned" product by Channel Master, you can pretty much forget the hope of any possible firmware updates for it from Channel Master.
I still have and still use my two DTV Pals modded with 1tb drives, and I contend that even with the loss of the extended TVGoS program guide and that they now only have a roughly 1 day PSIP guide from the broadcast stations, that they still outshine the CM 7400 by far.