[eluser]rogierb[/eluser]
The easiest way is to just move the download to a different server. The ratio upload/download will probably be more like 5/95 then 50/50. So that would be your first priority.
one way is to mount a share from the file-server to your webserver eg /mnt/fileserver
Then create a symlink in your webfolder (download/) to the mounted share.
Data will still pass trough your webserver but it will not use the HD's
Another(perhaps better) way is to create a new webserver dedicated to downloads (DNS: download.yoursite.com). You can still use the mount trick or use ftp to get the files to the download server.
As for the upload, I cannot offer any thoughts.
Hope this is usefull in any way, might be just me rambling :blank: