New here, but would like some suggestions

[SRod]

Hello everyone. I am new here, and relatively new to Blu-Ray. I say relatively only because I knew what it was, and had watched them before at others homes, but didn't buy one for myself until about 2 weeks ago. I have been lurking and reading posts here ever since then, but I need a few suggestions so I wanted to register and ask everyone.

Let me give a little preface of what I am doing, as I am in the process of building a HT in my apartment, piece by piece, and just have some basic questions on what you think I should do first.

To start off, I had an old RCA HTiB that was given to me about 2 years ago. It didn't sound that good at all, but it was free, and better then just TV speakers. Well, the receiver finally blew, (it wasn't working well when it was given to me but I repaired it) and I am now looking to upgrade everything.

I have a Dynex 32" 720P LCD, and an Insignia Blu-Ray player. The speakers on the TV are horrible, so just to hold me over I bought a Sony STR-DH500 receiver so I could at least have some better sound when watching Blu-Ray. I know it only passes HDMI through, so I am just using Optical Audio for now, and I plan on buying all new speakers, and then my new TV before I upgrade to a better reciever again. I won't get the TrueHD sound, but I can live with that for a little bit. Anyway, since I am getting wordy here, let me actually explain and ask my question, haha.

My old speakers are just junk RCA speakers, and the sub is a passive sub. Needless to say, the current sub will not work with the new reciever as I will need a powered one. I read around here a lot and have an idea of the speakers I plan to get, but I am wondering which would be best to get first.

I am looking to get the Polk Monitor 60's for the front, CS2 for center, Monitor 40's for the surrounds, and a PSW505 for the sub. I figured I would just go all Polk, no particular reason really, just thought it would be good to stick with all one brand. And the prices of those speakers are about what I want to spend.

Since I really need to get them piece by piece, which do you think would be better for me to get first? Since I currently have no sub connected, I originally thought about getting the sub next week, then the next pieces month by month when I could afford them, but now I am thinking that since the other speakers are so crappy, possibly it is better to get the fronts first and just live with no sub for a little bit longer. Would that be worth it, or should I get the sub now, and the fronts next month???

Basically I will be splitting it up to 3 or 4 purchases. Fronts, Center, surrounds, subwoofer. I might be able to get the center and surrounds in one purchase though, so that would make it 3 instead of 4. I will still be using the old crappy speakers till they are upgraded though, so it won't be a matter of having nothing connected at all, (except the sub which I have none) but they are seriously crappy so they probably would be better to not use them.

I am really a newbie when it comes to a lot of it, and even though I am reading through as much as possible here, it is a lot of info to process. I figured I would ask specifically what I was doing and see if it was a good idea.