Tech Station is a product that allows you the flexibility to run your hardware in the open air. The reviewers over at bit-tech.net are very critical of the Tech Station from HighSpeed PC. They claim it is overpriced with poor quality materials and a flawed design. They suggest a cheap case with a removable motherboard tray as an alternative solution.
Although Highspeed PC admirably defends themselves, another possibility would be to build a diy version using pvc and plywood shelves. Serious tinkerers should look at this: How-To: A Better Test Bench.
Update May 3: PC Tech Station for under $10 USD in parts.