AR-15; AR-10 Recommendations

[fabsroman]

I'm planning on getting an AR-15 and AR-10 in the near future, but I do not know too much about these guns. I have looked at Armalite as a starting point and am interested in the AR-10(T) Ultra and the AR-15(T), both of which have 24" stainless steel target barrels on them, with the AR-10 being chambered in .300 WSM.

I have also looked at Rock River Arms' website and they have an AR-10 equivalent coming out late this summer. Rock River Arms' suggested retail prices are a lot lower than those given by Armalite.

Are the prices about the same on the street? Are the guns about the same in quality? If not, is it worth it to pay the additional money for the Armalites?

What other manufacturers of the AR-10 and AR-15 are out there, other than Bushmaster? Should I be looking elsewhere for a quality rifle? At most, I am willing to pay $4,000 total for both rifles.