Zip the contents and give the users a link to the file location on your server.
I was think of that one, but what about those that have Mac. they can not open pc zips.
So you will need at least 2 versions on for mac and the other one for PC. PC need to be a universal one so anyone can open it. I think Winzip can do that for the pc version.Mac has stardard one as well, but I can not remember the name right now I think its called stuffit.
sandyw