Need help, Panasonic 460 or 450?

[handsomechap]

Hello I'm a bit of a noob when it comes to sound, I have been using an old sony 5.1 system up until now but I've bought a new TV and I want to upgrade the sound as well, Its a panny plasma and for the sake of simplicity I want a panny sound system to go with it, I saw the PT 460EB and thought it looked nice, then the PT 450EB and now I'm stuck so my main question is what is the differenc ebetween these two systems? is it just the ipod dock? (this is the only difference I can see off-hand, excluding the price ofcourse)
As I say, I'm a noob at sound so please be gentle with me if I'm totally wrong here

 

[imroberts]

The 460 has an optical input

 

[handsomechap]

Turns out the differences are the 460 has the ipod dock, optical out and can play divx.

Comet are discontinuing the 450's currently and I got the last one in the Rotherham store for 20% discount as it was ex-display.