http://www.amazon.com/dp/B0021UPAZW/?tag=atomicindus08-20
I think this Grey Pneumatic set has every size between 10 and 36 mm except 31. Grey has the same set (sizes) in deep 12 point and standard and deep 6 point, I think. Unless you have a specific application that calls for 12 point, you may find that 6 point sockets fit your connectors better.
Trying to buy individual sockets to fit everything you come across will be expensive, time consuming, and frustrating. Even with the set listed above, there will be times you need deep sockets in some of those sizes. You really need a deep and shallow set.