Non-Audiophile Audiophile question!

I would vote for planar, like magnepan

Larsen might work for that situation. 

I did something that was fun for me and it turned out very nice.  Depending on your room size.  My goal was a under $500 system, all in.  Amplifier, source, speakers, everything under $500.  I wanted an efficient single driver, one for left and one for right.  Used a class d amp with a bluetooth for source and amp.  I used 6" full range from Dayton.  How do you get the lower end frequency?  I made a transmission line speaker with PVC plumbing pipe.  The pipes go up against the wall to the left and right and then turn, go up a bit and are ported behind the listener.  It could be argued, that won't work everything will be out of phase.  It actually makes a smaller room seem larger.  I have also found that orchestral music sounds wonderful.  There is a huge weakness in the system as it does have a sweet spot for listening, that is about 4'x4'.  For someone sitting at a desk, it could work.  Not that it sounds bad, outside of this.  It just sounds really good in the sweet spot.  I also have another system and found that matching efficiencies of the speakers helps keep things in balance.  I have some Altec Lansing A7, 500's that I use Blumenstein's for the rear and center.  I tried some others but you really had to work the balance hard to make them sound correctly.   

@czarivey Interesting question!  I don't think it matters if you're facing speakers in a two-channel system or have them placed directly at your back.  Your ears function as the receiver(s) of sound.  As such, I would think the normal considerations for a two-channel sound system apply (i.e.  room size & acoustics; speaker placement; listening distance from the speakers; sweet spot; etc.).  That being said, if your seated or listening position is off axis (i.e.  not directly in the center of both left & right channel, otherwise known as the sweet spot), you'll probably prefer speakers that have good "off axis response".  If you intend to audition speakers in a good shop(s) before purchasing them, I recommend that you explain what you're after and have the shop(s) set up the room(s), speakers, etc., in as close to your home/office configuration as possible.  I think most omnidirectional speakers might appeal to you but there are others, as well (e.g.  Revel; PSB; Klipsch; etc.).  Your ears will be the best judge.

Good Luck!

Nobody thought of open back headphones?   Listening to speakers in back of you seems, well, backwards.