Need guidance... :) (with RS232 and Arduino protocols)

yeah im not sure what i was thinking at the time. i just mentioned ethernet as i have a nice little telnet server running on the arduino right now that can communicate over the internet rather well so i was suggesting along those lines. but i hadn't even thought of just using a pair of cat5 for the video (how simple). i knew ethernet was a complex protocol but i didn't think it was that bad. anyhow this isn't my project so i don't want to sideline it anymore, the subject matter of the project is interesting though