Putting together my own system.

[3Justin3]

Well, I think instead of buying a 5.1 system I might as well just make my own. I am going to get these tomorrow, now which center should I get, and rears, as well as Sub. Budget is quite low, looking to get the rest for dirt cheap. Should I stay Polk then, and does mixing and matching hurt the quality of the sound? Thanks.

Looking around I found some packages. Which would be better, RM6750 (complete 5.1, new), for $270CDN shipped. Or RM10 (5.0 no sub, used), for $265 shipped? From looking myself I think the 6750's are only 100 Watt, and the RM10 are 130 Watt. Oh yeah, and the RM10 come with 4 stands.