I have a very small gigabit network with lots of video traffic (with uncontrolled switches).
I want to buy a Catalyst 2960 8 port Gigabit switch to speed up my network.
And in addition i want to buy a file-server with two 2-ports network cards to connect all 4 ports to 4 ports of switch to have one ( etherchanel trunk?) fast channel.
Is it real with this switch and what server configuration and software would be ideal for this task?
The "bundle" can be a switch port or a trunk, your choice! If the bundle is a trunk or a switch port you get the aggregate of the bundle. Here's a link that might help. Most examples show the bundle as a trunk because that's how most people use it, but it can be configured the way you are requesting.