I just bought my very first system and I'm so thankful for all that you've said. I'm so happy of my purchase, especially in my receive: Onkyo TX-SR605. Well, just to share my though regarding the receiver. Previously, someone said that their are frequent "clicks" and "ticks" that can be heard. In my case there isn't. Yes, it heats up but not as much as those other older Onkyo models. Inputs are very sufficient and sound's fantastic. I also like its features like the Remote Interactive (I also have an Onkyo CD player that's why) although I find "Theater Dimensional" useless for stereo setup. There is only one flaw that I've encountered though...
I tried to calibrate my speakers via Audyssey. Yes, it preform the test as expected. However, the display hangs when I want to verify the SPL calculations, speaker distance, etc. (the word "CALCULATING" was there for 30 minutes).
But generally, I am very happy with my system. Once again, I felt the excitement of rushing for home after work.

Oh by the way, here what I've purchased:
A/V receiver: Onkyo TX-SR605
Front: Monitor Audio BR5
Subwoofer: Velodyne CHT-12R
CD player: Onkyo DX-7355
My next target is a plasma or LCD screen (minimum 40"), DVD player and a center speaker.
Again, thanks a lot everyone. Hope to hear from your opinions again.