I have just purchased a DirecTV R10 from Weaknees with the 250 GB drive upgrade. Other than the capacity upgrade, what other upgrades work with the R10 that people suggest? (I have a landline that I won't be getting rid of, so all of the options for working around that don't apply.) I have noticed that all of the sites are quite disorganized when you come at it with a particular model that you want to upgrade. For that matter, what is the dividing line between a "tips and tricks" kind of thing and an "upgrade"?