Very nice car... Are you planning on lowering it? The car will handle a bit better without sacrificing the ride quality much...
And if you're swapping all the outside turn signals/markers to LEDs, you might want to get one of the LED flasher relays from http://www.superbrightleds.com/cgi-bin/ ... ashers.htm and the number our cars use is CF13GL-02. It says they're for German/European cars, but that's the only one on there that has the corresponding markings on the relay pins. Works well.
Are you planning to go with HID's for the fogs too once you install them? And if you do, are you matching them to 8K or 3K as the fogs should be?
And again - nice Aveo.