This blog is Part II of the Touch Toolbox blog.
Over here I'll touch upon HW modifications, the network and server environment from a HW perspective.
I consider all this an integral part of your streaming solution. All this will also make a difference.
1. Power supply
2. Lan optimization
3. SPDIF data link
4. Onboard modifications
5. Server considerations
You really should have a look at it. You'll also find some easy to implement tweaks.