I was thinking about this
http://www.amazon.com/gp/product/002...706263?ie=UTF8
I really just wanted to be introduced to various Greek philosophers, and then, upon choosing the ones I enjoyed most, I could explore further into their works.
I have The Portable Plato which has The Republic in its enterity, as well as, others (I can't name any specific without going back to look).
I did plan on getting an Introduction to Greek Philosophy book, but when searching on Amazon numerous results came up and most of the reviews seemed to be very positive, making my choice hard.