A nice list which has been spooking around in my head the last week might be fun.
9 Grey Hunter pack w/ 7 bolters, melta, 1 p.fist/bp (215)
Drop pod
3 BC Bikers w/ 1 p.fist (188 )
WGPL w/ twin-LC, frags, Runic Charm, WTNecklace, bike
= 403
The WG gives the BC a very good punch hitting on initiative and the BC provide him with a meatshield. The WG does cost a whopping 86 pts, so he needs the meatshield and the Charm.
They can start cleaning stuff up, making sure they don't loose their lifes too early, until the GH arrive and start boltering and fisting the greatest masses of enemies to death.
I know the list is 3 pts over. One could opt to drop the WG's Charm. Alternatively one could drop the GH's bolters or 1 GH for a 2nd powerweapon or fist.
Tai'shar