Manchester Honda's pretty good:
www.manhonda.com
Autodynamic was cool too:
www.autodynamic.com
Neuspeed had the best customer service ever (spendy tho):
www.neuspeed.com
Extreme White was pretty good:
www.extremewhite.com
A real good idea is to check out a company with the Better Business Bureau before ordering parts from them (especially if you're ordering some really expensive stuff). To do so, click the link, then, click on "check out a company". You'll need to provide the name of the company and it's location.
www.betterbusinessbureau.com