Woofersetc.com the online car audio super store, the largest selection at the lowest prices! is a good place to go. Are you looking for an installer as well? PM me or instant message me I can help you out. I should be out there sometime as well. I would look at image dynamics for your amps and your speakers, kenwood for you head unit as well. Audsion makes some rely nice amps as well. I would not recommend going everything one manufacture some companies make better things than others. I would like to talk it over with you and ask you a few questions. That way I can better understand what you want from your system.
On a side note nice cars both of them.