Need opinions on setup

[XYRCNCP]

I'm planning on changing my system....just the basics though, head unit, front and rear speakers....the full blown system will come later...

Head unit: Alpine CDA-7875
Front speakers: Infinity Kappa 60.2 cs components
Rear speakers: Infinity Kappa 63.3i

I thought about getting Polk speakers also but I'm not too sure....
Budget for speakers: $200-250 max
Budget for Head unit: up to $450 max

If $$ allows I may get a little thump but I'm not sure of that yet....

[Impulse]

The kappa's sound very good in my opinion. I have a friend with them in his civic. I haven't heard any Polk car speakers so I couldn't comment on em.

[yellowGTS]

I would reccomend buying Focal speakers...they are the best sounding and amazing quality

[RATIFIED]

I have to second that on the Focals. Spend your money on the fronts and leave the stockers in the back for rear fill only.

[kabal57]

I'll toss my vote in for focal's too
they rule.
get a good component set for the front, and if you have some money left over, get a set of coaxials for the rear, since it is gonna be fill-in only