i was just wondering if anyone knew of any good programs for running an ftp server. rightnow i use bulletproof ftp server but i am looking to upgrade to a better program with more options.
In theory anything allows a dynamic DNS, as long as you can find a client for your OS. I personally use DynDNS and ddclient for my linux server. You only need one client per internet connection, not one per computer. For FTP, make sure TCP ports 20 and 21 are forwarded on your router.
EDIT: As far as programs are concerned, try FileZilla server for windows and proftp for linux/unix. There are some others listed in the freeware utilites sticky at the top of this forum too.