Try some better quality rotors, maybe some Brembo's (non-mex) from Italy.

Flush out your fluid and use a good brand of pads(like PBR).

Dont worrie about the rears, most toyotas are so wacked out of adjustment in the rear anyway.

The rears do very little of the braking and will not effect how the fronts wear. They will have more effect with a 4runner.