Okay, I fixed it myself. Here's what I came up with:

Code:
ON ^*:NOTICE:*:*: {  
  $iif(!$window($+(@Notices-,$network)),window -aelk0 $+(@Notices-,$network))
  aline $+(@Notices-,$network) 4( $+ $nick $+ ): $1- 
  beep
  halt 
}


Still, I need to create it with an Arial font. crazy