IR / Media PC / HomeSeer

In the comming weeks I will be putting together the configuration for my Media / HomeSeer PC. I am wanting to also include some type of IR capability to control my A/V equipment. The PC will be located in the same rack as the rest of my A/V equipment. A few questions about the IR part.
1. What is the maximum distance the USB-UIRT can be from the PC?
2. I also read somewhere, on this board I think, that one can use Pronto Hex codes with the USB-UIRT, is this true? If so, how.
3. How are other users setting up thier system, where is the media PC located with respect to the remaining A/V equipment, where do you locate the IR module?
Thats it for now, but I will prob have more later. Thanks for all reponses.
HD
1. What is the maximum distance the USB-UIRT can be from the PC?
2. I also read somewhere, on this board I think, that one can use Pronto Hex codes with the USB-UIRT, is this true? If so, how.
3. How are other users setting up thier system, where is the media PC located with respect to the remaining A/V equipment, where do you locate the IR module?
Thats it for now, but I will prob have more later. Thanks for all reponses.
HD