I bought OCZ Agilent2 180 version. Loved the difference to 5400RPM. Crashed after less than two months. Lost important data that was not in SVN/Dropbox/Mesh. Had to reinstall full system and tools, as the company policy requires full disk encryption. Still going to try with a new one.

Passing interface is a Dependency Injection (property, constructor etc.). If you need to pass small interface than consider Role Interfaces. IoC containers can themselves be small. - bynio