Decent High Output Alts on the web?

 my 2004 altima stock alt is only 110 amps, which i need at around 170 to power everything is my car plus my system ( 2 12" Kicker L7s and my 1500 watt memphis amp) that i need to install in this car.. the only website is HO alternators website but they want almost $700 for one, is there any other site that might be maybe $200 cheaper i hope? there is no shops where i live to where i can buy one, so im stuck with the internet... any advice would help thanks

http://www.motorcityreman.com/high-amp-alternators.html http://www.alternatorparts.com/ http://stores.ebay.com/Iraggi-Alternator-and-Electronics I know there are more, but those are the three I have heard good things about.

thanks guys i havent seen them yet, i will check into them andsorry for the multiple posts. every time i tried to post my topic,a message would come up and say it wouldnt post becasue of insufficent headers or something, then my IE would come up page cannot be displayed. but thanks for the advice on the alts.