I went with a Pioneer p3500 head unit. Pioneer 6 3/4 and 6x8 4way speakers. And the Bazooka CS8A. Soon going to a JL Stealthbox.
Head Unit 35.00..Wal-Mart Clearance...the box got mauled so I complained that it had no remote or manual. Remote is 20 bucks and the manual is a free downlod from Pioneer.
Speakers 140.00 shipped from e-bay.
Bazooka...100.00 Pepboys
100 watt wiring kit, speaker connector adapters, wiring harness and mounting kit all Metra..80.00 shipped from circuit city and installers.com