Email library.

This library would allow you to download a email from popular email services such as gmail and store it on a sd card where you can then browse for certain keywords and activate commands(or whatever) or simply alert the user when they have a new email.

There are a bunch of threads on email reading but I cant find a single one that is completed and/or fit my needs very well.

but I cant find a single one that is completed and/or fit my needs very well.

That can only mean you must build your own.
Probably you have encountered some that do a part of what you need.
That are the good ones to start with.