Getting this to work with an eggdrop would be simple enough; and the eggdrop would be able to cope with the bandwidth hog.
Unfortunately I know that the fsock functions have been killing my host otherwise I would give it a go.
vB forums -> eggdrop -> irc
you just write a TCL script on the eggdrop to listen on a certain port, the forums connect to the eggdrop and send the line of information and the eggdrop sends the information to a channel.
Code:
vbulletin.tcl
listen 1337 script vbulletinaccept
proc vbulletinaccept {idx} {
control $idx vbincoming
}
proc vbincoming {idx args} {
if {[join $args] != "" } {
putserv "PRIVMSG #vbchan :$args"
}
killdcc $idx
}