We got this:
http://www.diy.com/nav/fix/handtools...skuId=11398680
It's just big enough for a 1/10th 2wd in the top with the wheels off (at least son's Mad Monkey fits) with space around it for charger. Lots of space underneath for tyres, larger spares and tx. The top tray is good for tools. We use the swing out tray for smaller spares and have a small divided box in the main section for screws. It also has two sections in the top of the lid that fit a set of saddles or a stick pack in each.
The bottom section isn't divided so you sometimes have to search around for what you want, but it's cheap enough and does an good job for the price.
Found some more photos of what appears to be the same thing from Screwfix at twice the price! These show more clearly how it all works.
http://www.screwfix.com/p/stanley-mo...k-centre/99888