DropCopy is a insanely easy way to share files over your local network. Thanks to bonjour and it’s simple configuration, it is the perfect program for quickly sending files to other users on your local network.
There is a iPhone version too, Mobile DropCopy. There is a lite version, and the full version (which is $4.99).
If you’re in a Apple-centric LAN it’s perfect. Unfortunately there are only OSX and iPhone versions.