I was inspired by: http://wiki.eth-0.nl/index.php/LackRack
I used there parts
Ikea LACK table: http://www.ikea.com/us/en/catalog/products/40104270
Mid-atlantic storage shelf DC4: http://www.middleatlantic.com/rackac/storage/drawers.htm
You should be finished in under 20 minutes.
Step 1: What it used to look like
Step 2: Comparing old to the new
Step 4: Mount the equipment
Also the Scientific Atlanta 8300HD is known for being hot so give the vents on top some room to breath.