Thought up this list last night and will propably try it out.
HQ:
Sammael, corvex 200pts.
Librarian, PFG, bike 115pts.
Troops:
3man RWAS, 2xplasma, sgt meltabombs,
MM attackbike 170pts.
3man RWAS, 2xplasma, sgt meltabombs,
MM attackbike 170pts.
3man RWAS, 2xmelta, sgt meltabombs,
MM attackbike 160pts.
3man RWAS, 2xplasma, sgt meltabombs,
MM attackbike 170pts.
BA ally detatchement:
HQ:
Librarian, the blood lance, Shield of sanguinus 100pts.
Elite:
5 sternguard vets. 4xcombimelta, drop pod 180pts.
Troops:
5man assault squad, meltagun, sgt meltabombs, las/
plas razor 170pts.
5man assault squad, meltagun, sgt meltabombs, las/
plas razor 170pts.
Heavy:
Vindicator 145pts.
Total: 1750pts.
Ok, there is no anti air, but who needs it really with this list. The goal is to just rush forward and demolish anything as soon as possible, then when the enemy fliers arrive, just engage with everything and hit and run with the ravenwing so they can shoot again on my turn. Basically ignore the fliers as much as possible and focus on destroying the enemy... OH and here's a pic of my army (the sternguards are proxies as i don't have them ready yet

)
The biker librarian will take one squad and accompany the
BA tanks, riding behind them and giving them a 4++
inv. save.
BA librarian will go with sternguard into the drop pod for a stron alpha strike on a tough target. Everything will rush forward 12" firing anything facing them. Was thinking of taking psychic scream for the biker librarian, or presciense. depends on the match up really.