ahhh, I just love this board.
To the original poster, you have a few options really, and a search might bring up even more options. I'd say most people paint their cab. Use a good primer and a good roller for a smooth finish. I would guess spray paint would work, although its quite a large area to cover and I would think it would be more prone to running. You can also laminate the cab with..... well... laminate. This is pricier than paint. You can also stain it if you are using furniture grade wood (but you're not, just thought I'd mention it though). You could also cover it with side are/vinyl printed stickers.
Me, I'd also vote for the cream cheese... or peanut butter... mmmmm, peanut butter.