3boxer and dual boxer

I have been multiboxing for just a short amount of time now,

and my GF whom also plays wow has been inspired to try to multibox as well.

I am willing to start 3 shammans in hope that she will do two shammans for the completely overpoweredness that i have seen from all the 5 shamman heroic videos.

but, my concerns are for Wotlk,

As wotlk is coming soon, and heroics are being dumbed down (not as profitable and worse gear)
should we be focusing on the potential of 5 shammans still or maybe standard, 3 dps, tank, healer deal.

What classes would you recommend with Wotlk,

Will 5 man instances be even worth it anymore? i just do not know,



**Last but not least, is dualboxing a tank and healer even possible? never tried myself.
(sorry if this is worded weird or sounds dumb, its currently 3am, i cant sleep i need to be at work in 4 hours :-/ )

Start running 5x boxing with your girlfriend and do 10 mans in WotLK :)

>.< i would in a heart beat if i had the time or the money :-/