Let's discuss which banks are, and which banks are not bitcoin friendly.
I will try to keep this post updated with all new information as it comes in, feel free to PM me or reply to this thread if you have something to add.
(please note, just because a few transfers from bitcoin exchanges have gone through, doesn't make a bank necessarily bitcoin friendly. This list is for banks who have a proactive attitude towards bitcoin, publicly endorse it, or support major exchanges.)
United States:
Wells Fargo
Documentation Needed.
If anyone is still updating this, I have used my Wells Fargo account(s) to purchase bitcoin routinely. The only issue I've encountered is that, for instant/debit purchases, their automated fraud system sometimes decides it was fraudulent. I can't figure out the pattern; half of my Coinbase instant purchases go through, and the other half don't.
Whether they represent themselves as "bitcoin-friendly" and would welcome large and/or business transactions, I can't say.