Stereo & Electronics - speakers?

ok im putting down alot of sound deadener in my car this weekend and i want 2 just go ahead and replace all the old worn out stock speakers.

right now i have a 2-channel 2000 watt sony amp pushing 2 12" subs in a custom box with a clarion in dash dvd player with a 7-inch screen


now i wanna know wut size speakers 2 all buy? (I do not have rear sail panel speakers)

Thanks 4 your help guys :)

It's not just the size of the speaker, it's what works with your car that matters most if your still retaining the stock amp to run the speakers. Not everything works in these cars at different locations in the vehicle.
The size of the speakers are 6.5" components in the doors, 6.5" DVC subwoofers in the sail panels, and 4" components in the rear hatch for the Firebird/ Trans Am Monsoon system.