Proxy-like program

I'm going to try and make a proxy-ish program which will recieve requests from my client browser, then the server prog on a different machine would grab the website and send it back.

I would like to know how the website could be grabed by the server prog and then sent to the client without having to shuffle bulky files around.

Thanks in advance!

Im making a web server at the mo but its not open-source, check out planet-source-code.com and search for web server