Here are some fantastic double breasted jackets that I would recommend:
Click on image captions for more info.
|Marc by Marc Jacobs peak lapels|
|Hentsch Man wool-blend|
|Viktor & Rolf deconstructed jacket|
|Yves Saint Laurent|
|Alexander McQueen wool blend jacket|
There are many others you can try out. Don't be afraid to define some style authority to work or to the next event you attend.