Would you buy an out-of-print series just because I told you to? No? Well, you should! They have archangels (including a transvestite archangel), the devil, religion, politics, computers, AIs, and whumped woobies.
They're by Lyda Morehouse--Archangel Protocol, Fallen Host, Messiah Node, and Apocalypse Array. You want them you crave them you must have them!
You can get them here, or you can snag them used off Amazon or Alibris. My fanfic lives here. The other fanfic lives here, on the author's site, along with some additional material of her own.
Offer void where prohibited. A moose once bit my sister. Warning: Coffee may be hot.