I agree with what has been said before. You can't go wrong, as Hyundai has been on a role, winning numerous quality awards. Their Sonata won the best midsize car in initial quality. (least number of problems per car, as reported by thousands of owners).
Personally, having driven the Camry and the Sonata, as well as owning a 2003 Accord, I would, without hesitation, tell you to get the V6 model. It's power is awesome, interiour is upscale and tightly constructed, and I found it quieter on the highway then the Camry by a considerable margin.
As for the suspension, if you like to drive through corners with any gusto (you know, occasional spirited driving), the Camry is definately not the right choice. The Sonata strikes a good balance between comfort and handling.
Think of all the goodies you get with the Sonata, such as more airbags and and heat, 8-way power seats!
If you can accept that the V6 will consume more gas then a I4, and the trade off is worth it to you, then it's a no brainer. If you're more concerned with fuel economy, the 4 cylinder in the Sonata has been called one of, if not the smoothest, best 4 cylinder of any production car (auto123 reviewer).
So either way I think the Sonata is the way to go. The only arguement you're going to get against it is people who don't know that Hyundai's Sonata is very reliable (rated higher then Camry, or any other family sedan for that matter) and the resale value. However, there is no way you will ever lose anything close to the savings you've had... In fact, if you compare the resale value of a 4cyl Camry to a V6 Sonata in a few years, I bet the V6 Sonata will have a higher resale value! The lower resale value is offset by the higher level of trim. You get a V6 with more options for the price of a 4cyl.
My .02