Centerforce II is a good clutch for a street car with little to no track time. It uses a stock LUK clutch disk and pressure plate modified for their higher clamping force as RPM goes up.
The Dual Friction uses standard wear material on one side of the clutch disk, and a different wear material on the other side. It's a more aggressive clutch, but the pressure plate is about the same as the Centerforce II, so it has about the same pedal feel as stock, and Centerforce II.
If looking for a good price, look around for a dealer of the products that is looking to move product rather than make big money. You'll find them out there, maybe e-bay?
Spec makes a good clutch, I have their Stage 2 clutch in my 93. But a history of cars with spec clutches breaking parts has removed the faith from the clutch for use in our cars.