There are several ways...methods listed from easiest (least computer saavy), to more involved:
1. Let someone else do it for you.
go here: http://beta.yousendit.com/
for e-mail address, PM me for my private account, then select your file and send. I'll post the clip for you.
2. Create a free public account at 'putfile' or equivalent.
go to http://www.putfile.com/registration
to create an account (it's free). Then follow instructions on how to transfer your file. when you are done, it displays the full address of the file. THAT is the address you would post in the forum so everyone can view it.
3. Make a private account at esnips.
Start a free account at http://esnips.com/NewAccountAction.ns?action=init
and you can setup a private viewing area which allows only people you've invited to view your clips. or, of course, you could make it public and again just provide the link to the folder that holds your clips. This one is a little more involved, but really not too difficult.
any questions, feel free to pm myself or a mod for help.