First carbine - maybe you want to stay basic.
I got my son a S&W, then I got a DD. Right now there is 1 DD left at AIM, which would be a good starter gun : http://www.aimsurplus.com/product.aspx?item=F1DD20017&groupid=103
That is a VERY good deal for $1000 shipped. When you add all the stuff with the OR Smith, you'd be in the same range.
BUT, Smith is a good make, so I'm not bad mouthing them. But, the DD has an M16 BC, and CHF barrel.
Will I see the need for a CHF barrel over the lifetime of my shooting - maybe not!
And the S&W has MOST of the 'Milspec Chart' features for a pretty good deal now. The warranty is supposed to be one year only. I trust Smith a bit farther than that though.
Its a MAZE out there, but maybe you should 'read the chart' and then decide.
You can also get an LMT for about $1000 in basic configuration if you look around.