Help choose an ITX case

Just like many, I became excited after reading this post about building a Steambox on the cheap.

I want to build an ITX-based box with the following specs:

AMD A10-5800K or AMD A10-5700

MSI FM2-A75IA-E53 motherboard

Sapphire Radeon HD 6670 low profile video card

Haven't decided on the RAM and HDD, will probably go with a single large HDD (since this box will also serve as an HTPC).

No optical drive.

I want a really quiet and small ITX case. What will you suggest? Besides, what is the estimated TDP of such a setup?