I believe those punchblocks are used only for telephone. So I guess those cat 5 wires you see coming in there are used for telephone jacks somewhere in the house? If you don't need a telphone jack in the rooms you can likely yank the wires from the punchblock, connect them to a CAT 5 patch panel and then onto a switch from the panel via patch cords. You can skip the patch panel if you wish it just makes things neater.

Stu