80mm Fans 1 x 80mm Top Fan
120mm Fans 1 x 120mm Blue LED Side Fan
1 x 120mm Blue LED Rear Fan
1 x 120mm Front Fan
Right, well for the 80mm top fan, get the Sharkoon Silent Eagle 2000 80mm (Couldn't find it in Newegg). But, its the quietest fan that offers the best performance, and won't be heard in a room, as its below 20 decibels, but can still push around 25CFM which is enough to get rid of the heat (as heat rises, so it'll just help)
For the 3 other 120mm fans, your best off again with Sharkoon!
The Sharkoon Silent Eagle 1000 120mm fan would be perfect. Again, these cannot be heard in a room! Pushing around 40CFM at 19DBa!
A magazine called Custom PC, did tests, and said that they were the best on offer at the moment for peace and quiet, but for best results.
As there is enough fan mounts anyway, getting these 40CFM fans will create a nice bit of airflow all around the vital components, and that CPU runs surprisingly cool
No, there not the most powerful 120mm fans available, BUT you'll be surprised how much they'll help since you have alot of fan mounts there, and don't want noisy equivilents filling all of them, and would actually cool components better if you got the same fans, since it'd create a balanced coolig system, with some blowing in/out.
You can be sure also that the steel construction of the case will let out quite a bit of heat too.
Here are images of the fan (ones just bigger than the other), when you manage to find them on an online store or wherever:
Silent Eagle 2000 80mm.
You can also get the 120mm fan 1000RPM spinning one that glows I believe, if thats what your interested in.
Check here for more details:
For the CPU cooling like I said, nothing can beat the Arctic Cooling Freezer 64 PRO for cooling/noise/price, and like I said, will cool that CPU completly, even with overclocking in mind:
For the best cooling, I'd have the back 120mm blowing out, the side 120mm blowing in, the front 120mm blowing in, and the top blowing out.
That way, not 1 component will be restricted of air, since the side ones air would be pushed all around by the ones dragging air out, and so, keeping your system cool.
I hope this helps