I hope you did well on your hunt, I am going to sit in a tree tonight, I took yesterday off because it was pouring rain, but Monday I seen a nice 8 pointer {thats good for around these parts} which I could have easily put an arrow in but it looked like he needed a few more years, so I just watched him until he felt like moving on...
ANYWAY...
Back to your sound system...
$3000 is a really good budget, I would look into ID brands personally..
I would start with a pair of Ascend Acoustic sierra 1's in Bstock with a center you can get them for around $1000, give them a call and get the exact pricing, but I know they had some bstock available...
For surrounds I am fond of these
Amazon.com: Fluance XLBP Wide Dispersion Bipolar Surround Sound Speakers for Home Theater: Electronics , there is no reason to spend a lot on surround speakers, they are only effect speakers, and you wont notice the difference between a $1000 pair and a $100 pair...
Now for a sub, one of the most important components in HT... I think this guy is worth waiting for but HSU tends to be IMO the best bang for your buck in HT subwoofers, I have demoed many brands, I own SVS and Rythmic and I feel HSU is the best value hands down, I know we all have our favorites and HSU is mine... This sub looks to be impressive and talking with one of the guys at HSU that normally down plays their performance he was also excited about it...
VTF-15H MK2 Subwoofer
So that puts you around $2200 leaving plenty for a nice AVR, I would make a list of all the features you want, air play, audy, networking, 3d, 4k, windows media, preouts, ect ect ect and buy the one that you like, I personally would spend as little as possible since these are the first items to be outdated, there are new models every year and IME they are the first component to be replaced either due to malfunction, outdating, ect...
I like Marantz, Denon, and Pioneer, I would stay away from Onkyo and yamaha most others only because I personally had bad luck with them and tend to hear more bad about them then most other companies... Accessories4less.com has lots of refurbed units for great discounts... for example
MARANTZ SR6006 Home theater receiver 3D-ready HDMI AirPlay | Accessories4less ..
Last would be cables which depending on your sources and distances will need to be figured, monoprice is a good source for that stuff at a decent price as is amazon if you follow common sense and reviews...
So that what I would do a sierra 1 front end, fluance wide surrounds, wait for the new hsu sub, a refurbed avr, and call it a day... good luck...