Quick question on a possible polk system upgrade

[HeManster03]

hey everyone, i have a small dilema that i would like non biased, objective help with.
i currently have a boston acoustic mcs130mdnt speaker package and an onkyo txsr606 reciever. I am thinking about changing out my speakers for towers, a more powerful center, new rears and a sub ( only doing a 5.1 setup as it is for my bedroom). I was at work today and messing around in our audio room, and put the Justin Timberlake Blu Ray of the FutureSexLoveShow on the loop since i listen to it at home while doing projects around the house and I came across a Polk Audio package that caught my attention.
It was 2 Plk M20 towers( $178 for the pair) a Plk CSM center( I believe $88) a pair of Plk M10 bookshelf speakers($67 a for the pair) and a Plk PSW10BK sub( $134.50). this is through our employee accomodation and after tax comes to the store for me to pick up with no s&h for 480 and some change. I had been eyeing the Klipsch f-1, sub 10, center and crescent moon surrounds, but that would of cost me and extra 300 bucks, and i could really use some tires before the snow hits. any thoughts on these speakers? anyone have any of them and can give me a heads up on break in time or if they are great out of the box? I will be buying either of those 2 set ups in the next week or 2, so im not really open to alternatives. I like what I heard out of both of them today. PS, I did hook up the 606 receiver to both systems for an equal comparision, and both had speaker wire from the same roll, as personally done by me last month. lol. any help would be appreciated