There are several possibilities depending on how long you're planning on staying and if you need full hookups.
Trader's Village is very nice for an extend or short stay. They have full hookups. Also Tree Top in Arlington is close by. My sister and brother-in-law are there right now. It's a great park.
If you don't need anything fancy, Cedar Hill State Park is close by or our favorite, Loyd Park. Let me know if you need some links.
We're headed your way in about 10 days, we've got 1 night booked at Cloud Nine in Hot Springs and 7 nights booked at Petit Jean. It'll be our 2nd trip to Petit Jean.
I may as well be the 3rd one to recommend Loyd Park. If you click on my signature picture link you'll be able to find a lot of pictures of the campsites in the park. I would highly recommend site 180 which is lakefront with a LOT of space between the campsites or 208 which is not lakefront but is outstanding.
I also like Lloyd Park. Traders Village gets awfully busy on the week-ends because of the flea market next door (hard to even get in or out of the park). Other than that it is a nice park. Tree Top in Arlington is a nice place and close to lots of shopping. Have fun!
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