Well, here is my first go at a 7th Edition list. I went with a Battle Company for a couple of free transports. I left some of the specific loadout off, like special and heavy weapons, so suggestions are appreciated. There is wiggle room in the points.
*The Chaplain and Captain each join an Assault Squad, one in a Razorback and the other in the Stormraven.
Battle Company
Captain
Chaplain
2 x 10 Tac Squad in Rhino
4 x 5 Tac Squad
2 x 5 Assault Squad with Vet Sgt
3 Centurian Devastator Squad w/Grav Cannons
5 Devastator Squad w/4 LCannons
1 Dreadnought w/MMelta
Storm Wing
1 Stormraven
2 Stormtalon