Suggestions/Ideas on 4 room Directv setup with C4

[id4]

Hi,

I am looking for suggestions/ideas on setting up 4 room Directv distribution with C4.

I am sure most of you out there are already having this setup.

Currently, I have Dish network (1 HD DVR VIP722) hooked up with HC300 along with the other AV setup in a central location, and distribute the video to 2 locations, one directly via HDMI (in the main level) and the other over Cat5 baluns (in the upper level).

Now, I would to like to switch to Directv (getting 1 HD DVR and 3 HD receivers), and distribute the video to 2 additional rooms (in the upper level). All the rooms in the house is already pre-wired with 1 coax and 1 cat 5 runs.

What is the best way to setup this?

a) Use Cat 5 baluns as with original setup?

Move the HD receivers to each of the new location and feed in coax and IR control via Cat 5? (where can I buy cat5 to component baluns for cheap?)

Note: All the rooms are getting Audio switched via dedicated receiver (in the main level) / c4 amp (in the upper level)

Thanks in advance.