You can order them through AutoZone or Pep Boys. If you want some bling, you can look at slotted (Powerslot, I think you can order the Brembo OEMs slotted and/or drilled too). They don't crack like the drilled, and actually do a pretty good job of keeping the pads clean if you drive in a dirty/wet environment a lot.
Stainless Steel Brakes makes a slotted rotor with pads for around 260. One of my friends has baer slotted/drilled rotors which he beats the crap out of and never had any stress/fracture problems. FYI.