I wrote one of these for Skunkworks a long time ago; you old timers you may remember the multibots running at the Sanctuary on Solclaim. Anyway, I am running two instances of the bot for the next couple days to see if there are any problems. If not, I will post the most recent version of DibBot (2.05) to the skunkworks userware script repository by the end of the week.
You can download version DibBot 2.03 from userware at
http://skunkworks.sourceforge.net/ , but it has problems supporting more than 5 characters on your login screen unless you edit two lines in the script; there is a post on the skunkworks forum at Cam's site
http://www.cameroncole.com/forums/index.php explaining how to do this.
This script casts both primary and secondary portals for all chars on an account, buffs, checks comps, can use portal gems for the starter towns, logs when someone drags a creature close to you, logs activity, chat, and gifts etc etc