Need to upgrade to quiet case

[shootersam]

Currently have a Zalman Z9 Plus, which is a very good case, but it is a bit noisy and large for my liking. Was thinking of going down the MATX route and was looking at:

Bitfenix Prodigy M
http://www.overclockers.co.uk/showproduct.php?prodid=CA-142-BX&groupid=2362&catid=1850

Bitfenix Phenom MATX
http://www.overclockers.co.uk/showproduct.php?prodid=CA-147-BX&groupid=2362&catid=2278

Not really in the know about decent quiet 120mm Fans so not sure what to go for and not sure whether I should get a silencing kit as I don;t know how much difference it would make.

In my PC at the moment I have:

Intel Core i5-2500K 3.30GHz
Gigabyte Z68XP-UD3 Intel Z68 (Socket 1155) Mobo
nVidia GTX 260
1TB 3.5" HDD 7200RPM
BeQuiet Pure Power L8 630W '80 Plus Bronze' Modular Power Supply
Gelid Tranquillo CPU Cooler
Kingston HyperX Genesis Grey 16GB (4 x 8GB)

I know I need a new motherboard to fit in the case (any ideas guys) and am going to upgrade my graphics card soon to something that may be slightly wider than 2 slot. Can currently get the CPU to 4.5Ghz, but don't have it overclocked at the moment, so don't mind if I lose some overclocking ability. If the Gelid Tranquillo won't fit or a water cooler makes the build quieter, I would happily go for a water cooler for the CPU.

What would you guys suggest, thanks

Owen

 

[shootersam]

Decided on the Bitfenix Prodigy M Black as the mesh front should give it more airflow over the soft touch front on the White. Anyone had any experience with either case?

Edit: Reading more on it, some people are saying the white is better due to less dust and the airflow is just fine. Decisions Decisions.