Hi there. I own an Alienware x51 with a Geforce GT 545 GPU. I recently decided to upgrade my PSU to the 330w model and buy the GTX 660 for my system. However, I've heard of people having heating issues with their system after installing a 660. So, I also want to put all of my parts into a new case later on. Can anyone suggest a case that I can transfer all of my existing parts into with the new PSU and GPU?