First Build 1080P 3D suggestions please

Hey all,

This is my first build, I will be running windows 7 32/64 which ever works good with XBMC. What do you think of this build? I will be using the systems for:

1. Streaming all types of content (mkv, m2ts, avi, ISO, etc) including Blu Ray rips (all my content is on a NAS)
2. Download content (via Usenet) - this also means uncompressing downloaded material
3. Serve content to other devices in the house
4. Be very quiet, look good and have excellent performance
5. Windows OS only
6. Play 3D 1080p
7. Play 1080p with HD Dolby/DTS

CPU: i3-3225 with HD4000 $ 144.99
Mobo: AsRock z77 Pro4-M OR AsRock H77M $ 109.99/80.99
Memo: DDR3 4-8GB $ 37.99
PSU: Silverstone SST-ST40F-ES $ 44.99
================
Total: $ 337.96 / 308.96

Will i run into any surprises with the case? will everything fit in the case?

Thanks in advance.