There are 2 cases I'm looking at, both with 500/550 Power supplies, but one is a MicroATX and the other one is just ATX.
I was just wondering if the smaller size of the MicroATX would really affect the cooling, and if it would provide a major problem. I'm going to put in a 3800+ AMD, 256mb EVGA video card at 1500memory clock.
The Case has 3 clear panels that can be taken off, and I was wonder if taken them off would make for better cooling This is the case.
Thank you guys.

I would imagine with a smaller case you run into cooling problems due to the small size. Also, the case may be difficult to work in. I have this case: Lian Li Case
But mine was extensively modified by my computer manufacturer, Velocity Micro, to include a window and an LED in the front with intake fans.

What is the second full ATX case (link) ? (I'm assuming it is a SFC type)

Thank you

and that's awesome, Velocity Micro was founded in Richmond, VA. Where I live.

This is the other case I am looking at.

Now that I've seen them both there is no question about it. The midtower case will have far, far better cooling capability than the small footprint case. The tower looks to be designed for two 120mm fans which would be whisper quiet and move a ton of air at the same time. The case is laid out well and actually has a smaller footprint.

The only downside is that you will find it nearly impossible to find drives that are white to match the case color. I strongly suggest you go with the black version for drive faceplate color compatibilty.

Another small suggestion: get two 120mm fans for the front and back case panels. Move the existing 80mm fan that comes on the back panel to the CPU ventilation tunnel on the side. If you are up to some minor case modding then cut the fron and back sheet metal grillwork out and attach 120mm fan grills to the fans and mounting holes. Actually, the front panel 120mm fan cutout doesn't need a new fan grill because the case's plastic front panel protects your fingers at all times. For less than $20 you will have the coolest case possible.

The midtower case is much better. In terms of thermal dissipation, aluminum is better than steel but the decrease in temps is marginal. Velocity is very good, granted my computer came with some probs but they're not the company's fault and they go out of their way to fix them. Have fun building your new computer!