This addon makes it possible to make a premade group, without having long queues. The queues will be like if you solo queued. Basicly it makes everyone in teh group sign at the EXACT same time so you get in together. Which means very fast honor.
This addon used to be available on sites like curse-gaming, but got removed since the author "stole" some code from another addon, so now its pretty hard to find on the net.
Here's the link. Lemme know if it dies and then i'll reupload it:
RapidShare: Easy Filehosting
Im not 100% sure if its against blizzard to use it. They did make the patch to give premades long queues, and this is made exactly to go around that barrier. So use it at your own risk.