http://www.crutchfield.com/S-uPnQ6fq...0&I=580HTS780B
Onkyo HT-S780 (3 optical inputs)
The biggest thing to look for is a powered subwoofer. Many times, those boxed sets do not have a powered subwoofer, and the sub that comes with it are pieces of crap.
My Mom and I got my Dad a Sony one several years ago, and it is great.