it seems like a good idea about the ftp -
i would love to collect a list of free utility programs and commandline calls that might be useful as tools, maybe to provide as an optional download addon, like your ftp command, watermarking,etc. or at least provide a page showing people some suggested tools they could use.
i will try to figure out a good way to let the user specify tools to run on capture - its not hard to run the tools on capture of course, its providing a nice user interface in the options screen to do it.
i think it probably makes sense to add though, because right now the "on capture" tab of options lets you specify things to do like adding shadow etc., but you cant configure it to only do these on certain hotkeys, and it might be nice to have all of these things set up so you can say which operations to perform on which hotkeys.