No, that's not me blasting music. I mainly blast movies, and even then, maybe only a couple times a week.
I'm waiting to move into a house next year when I can blast all I want.
One of the guys I'm moving in with has a couple Paradigm Phantoms powered by the Pioneer 1014tx receiver. He's getting a center and some titans eventually to make a 5.0 set and he's in the market for a new sub eventually too. (I sold him my dayton 10" for $75 when I upgraded to SVS). He wants some more power too, and I don't blame him as his two speakers he has now cost about the same as my 7.0 setup. I don't think my ears are too picky though so I'm happy with what I've got now
What I did for sound was get a Chaintech AV710 with optical out and run it to my receiver. It does PCM for regular music and then I run Logic 7 (kinda like dolby pro logic) to get sound from all the speakers. If I play something with DD encoding, the soundcard output is AC3 and the receiver detects the DD signal I get the correct playback from it (DDEX for me). The Chaintech is only $30 too

. It came with an optical cable... but it's pretty flimsy so I'm using it to connect my DVD player to my receiver and bought a nicer cable for my longer computer to receiver run.
I'm not using any sort of amp in my system besides my receiver. My girlfriend's computer is hooked up with RCA cables too. It just goes from the TBSC to a 1/8" to RCA adapter and then a 25' run of RCA cable to the receiver. It sounds good to me.