Seems like we had a hot few days, and things are cooling off for a few now.  That's good. 
 
Like any project involving creativity and subjectivity, it's helpful to take a step back or else your judgement can become compromised due to familiarity. 
 
Here's what I'd like everyone to do who is emotionally invested in this.  Go find your most normal friends IRL and on Facebook and ask their opinion.  Show them several examples that have been posted here (I'll make a compilation), including the ones you detest/don't like.  There is pretty much a 99% chance that by participating in this thread you are not "normal".  That's not a bad thing; un-normal people do epic things all the time.  But your stylistic preferences may not be shared by the masses, so some perspective is necessary. 
 
Find the most non-techie, nine to five friends you have and tell them you are working on a big new technology project (because you are part of it, even by posting once in this topic) and you need their opinion.  You don't have to deluge them with a libertarian manifesto  Grin - you just want to find out which logo they find most attractive for a new type of private and secure money (like a bank or credit card).