Making Your Power Supply Better!?

I just bought this
http://www.newegg.com/Product/Prod [...] 6817339001
I'm not too worried about how good or bad it is as long as it works and everyone else who used it seems to like it also. So far so good.
But I was thinking after reading a report on why you should invest wisely in a power supply and one thing that came up about Cheap power supplies was heating and ventilation.
So I was wondering would taking personal interest in making sure your power supply is properly cooled by creatively augmenting your case with some fans and venting, increase the stability/reliability of it by a meaningful factor. Just a thought.
camplo