I've noticed that prices are AR's have come down, and there is seemingly a fairly good supply of stock around.  I'll get one at some point but am wondering, for a first rifle, are you better off with something off the shelf, like a MP 15 Sport or a Sig 556, or building one.

 

It seems to me that a NIB rifle is the way to start, and then perhaps build the second, or modify the first as a prelude to an actual build.

 

What does the brain trust say?

There are several threads on this topic, but to answer your question, I would recommend at least buying and building a lower and trying to find the right upper combo you want.  The lower is relatively simple to build with household tools.  

 

You will spend less money doing this way. 

There are several threads on this topic,

You ain't kidding. lol

 

I started poking around and like anything the amount of information is almost overwhelming. 

I would suggest reading some of those threads and feel free to ask more specific questions about parts choices and what not. 

yea, this is like the 5th or 6th thread on this exact same subject in the last month or so. there is a search feature on here for a reason. USE IT!!!