upgrading the sound in the taco

so ive alreayd got a new deck a pioneer 7800 full color display now its time for speakers and subs heres what i have picked out. Im gonna run the speakers off the deck for now and see how they sound

Thoughts?

current deck
http://www.crutchfield.com/S-X6a6543NLy4/cgi-bin/ProdView.asp?search=7800&i=130DEHP780

front speaker
http://www.crutchfield.com/S-X6a6543NLy4/cgi-bin/ProdView.asp?g=400&I=1086010CS

rear speaker
http://www.crutchfield.com/S-X6a6543NLy4/cgi-bin/ProdView.asp?g=400&I=1086022SI

sub/amp
http://www.crutchfield.com/S-X6a6543NLy4/cgi-bin/ProdView.asp?wm=fp&I=113KSCSW1&g=51000

 

I've never heard them but infinity has a good rep. I like poly and silk over any kind of metal as I think they sound a bit "warmer" The metal tweeters are always too crisp or biased to the high tones for my tastes.