Need 6.5" comps that can take 150w and sound clean
 

I've got a kicker sx600.2 on the way and am wondering what is available. Unfortunately my budget isn't great (maybe $350can shipped) so I will likely have to order from ebay or the like. I've got my eye on a set of crystal sscs-6 components that are supposed to be able to take the 150 watts the amp can push. also if ordering from the states will I have to worry about duty?

Yes, you have duty, taxes, $ converson, international shipping and no warranty in Canada. With the amount of power you will be using, a set of speakers that have warranty in Canada might be in your best interest. Sometimes all it takes is for a dealer to snif around and find a deal for you.

I picked up some Polk MoMo MM6's off this site in mint condition for $275 shipped. They are rated at 150wRMS and sound very nice. Just make sure you aren't getting cheesed by a thief and you should be alright.

These could take it and they look pretty cool.

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From Canada to.

JBL GTi series 6.5 will handle it.

If you have a little extra money, you could try out a pair of MTX TXC6.1 high end component. Beautiful sounding speaker.