Check out Xantech's RT8 addressible router and their RC68+ programmer. I am getting into a project where I will need to control a couple of TVs and Sat boxes in the same room contolled by a TSU 6000. I spoke with their tech support and they said I should be fine.
Price was not a factor in this project so I am not sure of the costs off the top of my head.
Like I said I am just getting into the project so I have not worked out all the details as of yet. The equipment will be going in sometime this week and then I will get to play with the programming.