I'm seeing the crazy new pyschic powers you're getting and I am very jealous.
I'm seriously considering getting marines soon, because I feel like you're not a proper 40k player unless you own some. And I haven't owned a marine army since 2001.
I did recently buy some scouts and a storm speeder with the intention of making a kill team. Give them Elysain Drop Trooper heads and a bad paint job. I could restart that after I strip the paint off them. Go with Raptors, because they're Camo Marines.
This is why I'm Captain Calamity.