You can use
http://www.yousendit.com/, here's how to make a static link:
1) Upload the file (up to 1 GB), do
not enter an email address
2) After uploading, it will give you a link for the download
3) Post the download link here, but change the "http" to "hxxp" so that the downloads are not counted and the link remains active (usually it only allows only 25 downloads or something of the sort).
Those who download will have to manually make the change from "hxxp" to "http", the link will stay active for 1 week.