Re: Cheap, but good entry level AR
Why not a Colt 6920? Top quality rifle for ~$999. Plenty of room for future expansion, if so desired.
For my 2 cents-
Don't get to focused on how you must have it now, or how it won't matter what quality of rifle you get as it's "only a range toy", or so on. This is why all the crappy comapnies are still around- because people coerce themselves into settling for less (or as some are fond of saying "just as good as X brand"). Never settle for second if a better product is well within reach. Or to quote another person, "even if you're not in the military you should still be demanding the best."
You mentioned HD- To quote an oft repeated mantra, how much is your life worth?
If defending yourself is ANY part of the equation, second best is never good enough.
Now that's not to say you MUST spend 5-grand to get every "best" thing with the rifle (even an all-out DD,BCM,Etc. is not much more than $10-1500).
And the stuff from Spikes or S&W or PSA are NOT bad choices, BUT why not save for a just a tad longer and get (one of) [see 500grains' list. Same goes for internals, like bolt carrier groups and LPKs] the best that's available while they're still legally available?
I could see if you can walk into your LGS and purchase one of the Spikes or S&Ws tommorrow it might be worth it what with folks going batshit insane buying everything in sight, but if you're going to be ordering and waiting, might as well make the wait worthwile and go for a better item.
Also- you may want to reconsider building- if you shop around on forums and such, and aren't to worried about buying slightly used items, with a little luck you can assemble a rifle above and beyond what you currently want. It's not like you even have to buy every part individually- plenty of factory assembled uppers floating around out there.
You may find this link helpful-
http://www.m4carbine.net/showthread.php?t=7355