......Also Do nVidias run hot?
nVidias? Actually, I've never seen one.
nVidia cards that I have seen use nVidia chipsets and design, but are manufactured by third party companies.
nVidia specify a "reference" design for each category of card, it's then up to the individual manufacturer to implement that card's characteristics, cooling solutions and performance capabilities notwithstanding.
The old ATI vs. nVidia mentality is largely based on ignorance and retoric. Video hardware needs to be carefully researched and assessed in order to make valid comparisons and objective observations.
Running "hot" is a subjective analysis without other supporting facts, such as case ventilation, ambient air temp etc.
But, alas, to allay any fears or misconceptions, modern video cards seem to have improved dramatically as far as heat generation/dissipation/performance ratios are concerned due to modern silicon processes and other technologies.
For instance, my new nVidia 6600GT runs relatively cool

Mainboard: Asus P5K-Premium, CPU=Intel E6850 @ x8x450fsb 3.6ghz, RAM: 4gb PC8500 Team Dark, Video: NV8800GT, HDD: 2x1Tb Samsung F3 RAID-0 + 1Tb F3, PSU: Antec 550 Basiq, OS: Win7x64, Display: 24&