This is my cart I built. Forgive the picture quality. I incorporated vertical slots in the rear (rubber weatherstrip lined) so that cables can pass through easily. Several holes where I can attach S-hooks. Looks bare as I only pull out the laptop, pico, attachments, scanners, etc. when I need them.
Also wanted to show the back on my Pico. I added one of those stick on wall hangers you can find at most stores. I hang a S-hook under the hood and then hang the Pico off it. Works great, keeps it out of my way and away from engine heat and accessories.
Last pic shows my scanner drawer (Pico and it's accessories are stored in different drawer) of my toolbox. Main laptop for Pico is stored in that hard black case. Another good tip, save cases from any items you get. That case came from a Snap On MicroVat, is foam lined and holds a laptop and some accessories (power cord, etc.) nicely. (iATN members can see a post on that at
http://members.iatn.net/forums/read/msg.aspx?f=forum8&m=85553&fv=3&page=1 ). 2 other laptops in that drawer, along with IDS, Mentor, Mastertech, etc. A lot squeezed into that single drawer.