Shop garage sales and auctions.

Consignment stores, yard sales, antique shops, etc. will be your best bet. I always see those there- and you can probably get one for a good price. Good luck!

Lowe's had several for sale.
Cracker barrel sells them as well.

Best of luck.

The ones the sell at Cracker Barrel are really nice.

I too wanted a basic rocking chair for my nursery but had a very difficult time finding one that was not a glider. I did in fact find one at Walmart.com. Unfortunately the down side was that the cost was about the same as that of purchasing an inexpensive glider.

But on a positive note the chair I purchased comes in a few different colors and is actually quite comfortable. I am hoping to be able to have it for many years to come.
http://www.walm…

After purchasing my chair a couple of my friends mentioned to me that they had seen some old school rockers on Craig's List. It does appear to be a hit and miss item, but if you have a little bit of time before needing the chair you could always try that. Plus. if it is good quality you have the option of sanding and staining or painting it a color that works for you.