My current list that's still being out together.
1. Tables. At least one for kitchen, one for dining, And one for inside the tent. I don't want to have to lug a table in and out of the tent for eating.
2. Tote, or some kind of, storage organization. Kitchen-toiletires-bedding-r&r(chairs n things)-insect&sun defense.
3. Try and fix my 12v cooler fridge.
4. Better quality stakes & mallet for tent setup.
5. At least one dining fly, incase of rain / campsite without much shade
Tables You should check out the Lifetime 4' Fold-in-Half table available at Home Depot for about $40. Walmart has a version the same size and another that folds slightly smaller, but both are too wobbly for me. I will be interested to see what you come up with because I have tried many options and still haven't found the "perfect table for me." I currently use a drop down tailgate table and a small plastic folding camp table or two but am always looking for something better.
Totes Plano makes some good boxes that are relatively inexpensive. Rubbermaid Action Packers are also popular. After using many different totes and boxes, I eventually settled on two Front Runner Cub Packs behind the rear seat in my LJ - one for the camp kitchen and the other the "trail box" with tire tools, bottle jack, BFH, etc. I use the larger Front Runner Wolf Pack boxes in my Xterra. Google the "three box packing system" discussed on some of the overlanding forums for some other options.
Dining Fly/Sunshade I have become a proponent of the Noah's Tarp by Kelty. I have two, a 9' and a 12'. They are reasonably priced, lightweight, pack small, and are easy to set up.