I stated earlier that Thermaltake has been all about cooling since their inception. They started out with processor cooling, but have since expanded their lineup to include nearly everything in the system. So how can we compare this tradition to an enclosure?
To start things off we'll take a gander at the front side of the case. Natural, effective airflow begins low in the front portion of the case and exits high and to the rear. This causes a natural ventilation that takes in the principal of heated air rising. The Xaser II 6000 case has not just one, but two 80mm fans located in the lower front portion of the enclosure. To make things even better, the top fan sits right within the lower drive bay so it does double duty. It brings in fresh, cool air from the outside and also blows it right over the primary hard drive(s). With hard drives spinning faster all the time and producing more heat, this becomes a very vital area to introduce cool air to.
The fans pictured above are located just below the PSU. This works very well since it is able to suck out most of the heated air emitting from the processor and video card areas. These will be the two main components that put out the most heat, so these fans do a very nice job of getting rid of this hot air. Anything that goes higher will be drawn out by the PSU.
Finally, we have an additional fan installed to the side panel of the case. This fan blows right in the area of the processor and video card, so it helps to draw the heat away and force it out the exhaust fans. Overall we have a very effective cooling solution in place. Even better is the fact that every fan mount is filled with a fan right from the factory. Even Antec doesn't do this. Here's a look at the side fan from the outside.
The only drawback that I can see with the cooling system of this case is the lack of proper filtration. Dust is one of our worst enemies, but the only fan to have any sort of filter in place is the side fan pictures above. Neither of the front fans have any means to keep the dust and grime out of the system.
I should probably take a moment and tell you about the included fans. They are a standard sized 80mm x 80mm x 25mm in size and spin just over 2000 RPM. They are rated at 32-CFM and a quiet 21dBA noise output. While they aren't the meatiest fans on the market, they are sufficient for a vast majority of the systems out there. They are also reasonably quiet too so won't be too much a burden on the ears.
If this isn't enough airflow for your taste, then you can order the case from Thermaltake with their new Smart Case Fan II. These monsters should fulfill all of your cooling desires and then some. They are the same 80mm x 80mm x 25mm design, but they spin at speeds up to 4800 RPM with a maximum airflow rating of just over 75-CFM. Of course, you'll also be looking at a bit louder volume here to the tune of roughly 48dBA. These fans also have three different means of controlling the fan speeds as well, so the options are nearly limitless.