Bushmaster or Rock River Arms, partner. Les Baer's are like Ferraris. You pay a lot for a marginal increase in performance and a hefty premium for the name. Start out with something simple and if you need to, build up from there. Also, learn how to shoot with irons FIRST before you slap an ACOG onto your gun. (although if you have $2,000 to spend on a gun and $1,000 to spend on a scope, you're one well off fellow).
Some people may disagree with me here, but for your first rifle, don't spend more than $1200 or so. Get the free floating handguards, get the good quality barrel, and get a nice trigger. Why? That way, if you miss, it will be your fault, not the gun's. There are few things that make an AR more accurate than those three components. With good quality ammunition, almost any major manufacturer's "varmint" rifle will be far more accurate than you are. So, save you self the money, get a nice Bushy, RRA, Armalite, or Oly, and whatever change is still jingling in your pocket, spend it on good quality ammunition.