You can get the EEA2 form from UKBA website. It also enlists the supporting documents required.

Good luck

 

It is you that has to apply, not your wife. Form EEA2 which can be downloaded from the Border Agency website together with the guidance notes is self-explanatory.Neither of you can apply on the grounds of self-sufficiency unless you are indepentently and subsytatially wealthy, which you say you are not. You simply apply as the non=EU/EAA spouse of an EU/EAA citizen who is already present inthe UK. For you it will be a simple process.You should not apply in advance of more than 28 days before your present permission expires, and your present permission will automatically be deemed as extended until a decision is made on your application.Normal appliactions don't take long. Lengthy cases on here nearly all seem to involve those who have not provided the correct information, those who have made the wrong information, or those whose applications will fail because they are not entitled, or because they have attempted to deceive.
Good luck to you.