Check local business liquidators. I recently scored a like-new height-adjustable 30" x 60" bench with a 7' tall steel frame, two deep heavy duty shelves and 30 outlets. For less than the price of a cheap new bench, I got a complete workstation. As others have mentioned, shelves are an important consideration, especially if you have bulky test equipment. A 30" x 60" (76cm x 152cm) work surface is decent, but if I had more space, I would go slightly deeper and as wide as I could.