There's a lovely little book by Brian Church called "Learn Greek in 25 years", culled from his column in the Athens News, where he went to work after "falling in love with a Greek Goddess"
It is very, very funny - and actually quite useful in understanding some weird bits of the language.
More seriously, if you have an Android phone, it's worth downloading the free app "Google Translate".
This allows you to speak any phrase in English into your phone - it will then translate it to whatever your chosen target language is, and when you press a key, it will speak the phrase allowing you to get an idea of pronunciation.
It is also a great fun app to play with, in the bar of an evening with a crowd of like-minded idiots.
One big downside - you do need to be in a WIFI area when using it.