Ok, well I'm going Thursday morning as well, (and I'm only guessing on what you'll need cause I've never camped before) and I'm bringing my PSP, a couple UMD movies for my little cousins to watch while they fill up chair space, my GBA, and some food (like sandwiches or something that won't taste bad 4 hours later). I don't know if you'll need food though cause I read they usually let you leave to go get it. Just don't be gone more than 30 minutes. Oh, and chairs of course, but I guess Wal-Mart sets up chairs for people too. I'd actually recommend talking to the manager at your Wal-mart and seeing how they are going to do it.