I have years of Speaker Builder mag with lots of DIY stuff but what is right for you is hard to say.
I thought you had already bought the Polks.
I have a few extra pairs of speakers too.
A pair of SPICA TC-50 That I got a real nice deal on that I plan on selling.
They look like this.
http://members.aol.com/basconsultants/sptc50_ovr.htmOne has a broken speaker input cup but they work fine. They list new for around $450 to $550.
If you have a sub and can place then on stands in the room a little the sound stage is vary nice, better than most under $1000 speakers and better than any thing I have made.
But they need be placed away from the back wall a little, this is a no go in my house right now and I have 8 full sets of speakers right now so I just don't need them.
These are music lovers speakers not pounders. A cheep amp and CD player will sound harsh with them, they are brightly balance.
Read some of the reviews, this is nice speaker if you have a little room and good (smooth) electronics.