Newbish audio questions. Help needed.

[jq71586]

Ok, with the announcement of the PS3 and DTS HD-MA I'm looking to upgrade my audio system so I'm able to take advantage of these wonderful audio codes I've heard so much about.

Before I get to my questions, let me explain my situation. I am currently still in school, so I still live at home. Now, that I got that out of the way, here are the questions.

Lets say I pick up the Onkyo 605, will my current speakers be able to handle it. (See sig for embarrassing audio set-up) I know it won't be great, but will there be a noticeable difference up from my setup handling DD 5.1? Or will the 605 and the audio codecs be too strong and blow out my speakers?

Another thing is that I live in an apartment and not a house, so I do have one more apartment above me. I know the audio is much clearer, but is it wall rattling loud? Will this get the person above me, and even people in my own apartment mad at me?

The reason I'm asking this is because I would like to grab the 605 first and then pick up a beginner set of good speakers maybe by the summer, or Xmas at the worst case scenario. I will never hear the end of it if I go out and purchase a 750+ dollar Onkyo 905 HTiB, but if I can split it up in two purchases over time maybe it will go over smoother.

Thanks in advance for the help.