Neither case has an optimal cooling design and frankly, I really don't like windowed cases with their associated EMI issues, but if you have your heart set on one of these two then go with the full size unit.
Also, WRT to your plans for SLI, are you aware of the issues associated with nVidia chipset motherboards, currently the only ones which will run SLI. If you have "any" overclocking plans, then you should make yourself aware of the potential issues associated with these chipsets, most notably data corruption issues. Some people are lucky, many are not.
genzeleam, I would recommend the full tower case, as it allows for better cooling, as well as the flexibility to add more components such as watercooling, SLI solutions, or extra fans in the future.
As far as the saying either case has less than optimal cooling, I can say from personal experience as a computer vendor, that there are FEW cases that have BETTER cooling than either of these. I believe that statement to be false.