A third question

[Shadowmonic]

is there a good place to get a couple of good surround Polk speakers at a reasonable price like the LSI Brand

 

[j_garcia]

If you bought LSi7s, you would be better off using them as mains than the R50s. Even used, the LSiFX and LSi7 aren't going to be cheap. For matching, it will work best if you stick to the same family of speaker: R, Monitor, LSi, etc... If you had to mix/match, surrounds are less critical, so you could go with a higher line up front and a lower one for surrounds, but the ideal setup is matched all around.

 

[m_vanmeter]

when considering "bang for the buck", it is very hard to beat the Polk Monitor series from http://www.newegg.com/Product/ProductList.aspx?Submit=ENE&DEPA=0&Order=BESTMATCH&Description=polk+monitor with the Polk Monitor 30 bookshelf speakers as the low cost entry point for the series...all the way up to the very full range Polk Monitor 70 towers.

PS: The current Polk TSi series speakers are basically the same guts as the Polk Monitors, just an esthetics upgrade for appearance (and a higher price)
TSi 100 = Monitor 30's
TSi 500 = Monitor 70's , the ones in the middle fall in line with these endpoints.

 

[HDPCsound]

Here's one place where you can compare prices, all on polk surround speakers:
http://shopping.yahoo.com/s:Surround Speakers:4168-Brand=Polk Audio

Another place:
http://www.newegg.com/Product/ProductList.aspx?Submit=ENE&DEPA=0&Order=BESTMATCH&Description=polk+audio+surround+speakers&x=0&y=0