Well we seem to have been all over the board, lol. Here is my recommendation piecing together all the information you have given us.
Budget 3,000.
Mains: Axiom M60 V2 - 990.00 shipped
Center: Axiom VP150 V2 - 408.00 shipped
Receiver: Onkyo 805 - 850.00
Sub: SVS 20-39PC+ - 950.00 shipped
Total 3198.00
Here is my reasoning. You mention you like music loud as well as the fact you are already looking at Klipsch. The Axiom M60's are a very accurate speaker. They are as at home playing an Alison Krause SACD as they are transporting you to the Colosseum in Gladiator. I had my M60's hooked up to a Cinenova Grande at reference and they never broke a sweat. They are also a lot less fatiguing that Klipsch's IMO. The VP150 is a beast for HT duty. When 70% of your action in movies comes from the center channel, you better have one that can stand up to the torture. The 150 does it in spades. The other nice thing is you can order the QS8 surrounds down the road to timbre match all the speakers. The QS8's are a quad polar speaker which work extremely well in a HT environment. I use mine for multi channel music as well, even though most advise using direct radiating, and have been thoroughly impressed. Axiom also gives you a 30 day trial period to test them in your own home. All you're out is the return shipping. The SVS cylinder subs, if not having to pass WAF, are outstanding for both music and HT. The 20hz version does it all well. Very accurate with no audible distortion. It should play down to 16 or so hz factoring room gain. It will cover all musical instruments, excluding maybe the lowest key on a pipe organ, and shine for HT duty. The only reservations I have on the 805 Onkyo is if you are a videophile and are looking for the best possible picture. If so I would highly recommend the 875 with the Reon processor which will set you back a cool 1300, obviously changing your budget restrictions but will upscale all signals up to 1080p with razor precision. I would recommend the Onkyo over the Denon due to the extra features it offers for the price. I have been a Denon fan for years but switched to the Onkyo 875 this year due to the Reon and couldn't be happier. The 805 is the least expensive THX ultra 2 certified receiver out there. It includes HDMI 1.3, 130 watts per channel, and a host of options to help you get the most out of your HT, music experience.
This is my opinion and you know what people say about opinions.