Most folks have covered the basics, but here are a few toys I've bought that have made things really helpful.
Zodi Hot Water Portable Shower. Now I don't use it to shower, but use it to make hot water for dishes, etc. I don't have a hot water heater, so that is a lot quicker than boiling water in a tea kettle.
Small electric blower. I just got this and have used it only once, but it's been great. I used it to blow off the green pollen from my shelters before packing them up, and use it to blow off the rugs before packing them up. Lots better than a broom. I'm sure for my longer trips at Ft. Wilderness it will be great as by the end of two weeks, pine needles were everywhere, and a broom just wasn't cuttin it.
Electric drill (and adapter purchased from the RV dealer) to raise and lower my stabilizer legs. Sure beats hand cranking.
I installed an XM Radio Cradle in my camper, so I can move my radio from the truck to the camper. If you don't have a good TV signal or regular radio signal, you can always get an XM signal.
I didn't read really closely, but a few critical things you need in your kit is fuses, light bulbs (RVs have some strange light bulbs in them), and make sure you have a socket and torque wrench for your camper tires.
Also, you need an electrical tester to make sure the power at the campsite isn't going to blow out your electrical system on the camper. Nothing fancy. I use the following with an adapter. If the lights glow the correct colors, the power is OK.
http://www.go-rv.com/coast/do/catalog/page?dealerId=1910&pageNum=56&productId=12439
http://www.campingworld.com/browse/...e-to-15-Amp-Female-Round-Adapter/skunum=24494