If you're in GA there are lots of stores near you.
We just bought one from them this week and had it shipped to us in TN. Spent just less than $950 and that included shipping and a queen bed frame!
After researching (consumer Reports and Old Bed Guy), we went with an Orthopedic Luxury Firm, which is supposed to be geared for side and back sleepers.
You can flip it. 
The individual coils are like 12.75, if I remember right, which means great support, while the extra padding(next step up from Extra firm) gives just enough comfort, without being pillowtoppy.
Now, granted we've only had it for a few days, but my back doesn't hurt anymore when I wake up.
Iirc, Serta and Sealy and Tempur-pedic are owned by same company now. A lot of their mattresses are continuous coil and if they aren't, the coil gauge is like a 15 or more, and neither of those features really make for a good mattress.
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