Recent content by audio and computer maniac

i have a website and i want to add a facebook chat box so people on my website can talk to there friends on facebook from my website. note i need this to be in HTML format.

i want to get a widget for my website, that allows me to transfer files from my computer to my website members computer, but i want it so that i can send certain file to a certain person. is it possible, also it can be in either PHP or HTML, i really need this i have a website that gets millions...