79-04 seats are a direct bolt it. The 94-04 seats will place you up higher in the car, so having a non-tilt wheel kind of sucks.
The 05+ seats will fit with custom brackets to mount to the floor. The seat frame is complicated to make brackets for since the frame looks nothing like the 79-04 seat frame. I sold a guy with a notch a pair of 05 leathers back in 2005. He actaully stopped by my work last week to show me he finally got around to installing them, and they looked frickin sweeet! I highly recommend making some brackets to make them fit.