If you have an 02, and you live in Illinois where they salt roads in winter, is this really the first set of rotors?
But yes, the OEM rotors can be turned once and will be fine. The only reason people use the Brembo rotors is that they come from the same place as Hawk/Satisfies/Akebono pads (genrally
tirerack.com) and they're pretty cheap.
I get rotors turned for free at a checker auto by us. If worse comes to worst, you can take your rotors there, they'll tell you they won't turn them (if they're too thin, or warped) and you can buy rotors there.