What is your meta like?

Kinda mixed. Jund midrange, Control, aggro. Theres nothing that really jumps out as "why is everybody playing this?" ya know? Looking at the deck I could see having some issues with control, but I have no idea how I could counter that.

Against control, the only thing you can really do with just these two colors is a playset of Duress in your sideboard and maybe Judge's Familiar to counter an early board wipe. I would, however, recommend adding red and then you have access to Boros Charm and Legion's Initiative to counter the board wipes and Slaughter Games to remove their Jace's or a playset of their counters, or possibly Snapcaster.

Rest in Peace in the sideboard for those reanimator decks.

I agree with Duress , but also consider Sin Collector . Soon as Theros drops, get yourself a set of Thoughtseize . I've been running Rootborn Defenses as a defense against boardwipe, trying to avoid having to splash a third color. You've got a lot of white here, maybe consider Brave the Elements as a protection against spot removal and combat tricks. Its a pretty quick deck, but you'll likely never get Blood Baron to go to his 10/10-ness without more lifegain. Also, depending on your meta, Doom Blade , Orzhov Charm and Celestial Flare are wonderful removal options that are sticking around. I run Crypt Incursion against reanimator, it sits in side and just ends all reanimator decks.

Cool ideas. I like the Sin Collector , hadn't really thought of that. Rootborn Defenses is a nice touch for boardwipes to.

If I'm honest I dont think I'm going to try to make this deck standard after theros drops. Over half of the deck goes out (33 cards) so I'm not sure if its worth it to bother. May just make something new. Was thinking a Mono White human deck, but thats all in the works at the moment :P

Don't dump! Adapt! Here's my deck that is losing 15 non-essential/easily replacable cards (except Sorin)

http://tappedout.net/mtg-decks/your-taxes-pay-for-my-army/