iMac bridge to Directv dvr for internet connection

Hi. First of all the title tells you what I want to do. I will first show you my setup. I have an iMac 20 inch connected to Time Capsule wirelessly. Wirelessly because it is across the room. My Directv box is right beside my imac. so there is now way of running a cable from my time capsule to directv box. i want the internet from my imac (via ethernet) bridged to the directv box. i have tried several configurations but still unsuccessful. I have not tried all possibilities though. do I need a crossover cable? is imac capable of bridging? i remember doing this to my Macbook pro which I bridged to my xbox. So please help me here.

You could get an Airport Express and use it as a slave to get your connection just set up
as join existing wireless network .

osxx said:

You could get an Airport Express and use it as a slave to get your connection just set up
as join existing wireless network .

Click to expand...

Yep, this is what I did.. I also use it to feed audo via mini-tos to my stereo. Works very well.