I continue to be very satisfied with my decision to get cross-drilled, slotted Bradi rotors from Irotors.com at $219 for the four of them. Installation was done by Frontier Infiniti in San Jose. Since I did not get plated rotors, they now have a "pre-rust" golden sheen on the non-braking surfaces. Not an issue for the braking surface - that still looks just fine.
I now have about 3k miles on them, with OEM Infiniti pads, on my 95 Q45 and they are working well. Smooth stops without any concerns; no vibration, etc. Even hard stops are well controlled. I had a recent unexpected opportunity to exercise the ABS hard (lady in front of me did not make it - she slid into the guard-rail on Highway 85 in San Jose, swerving to avoid an SUV that stopped suddenly in the middle lane during rush-hour traffic).
Note that a few folks here have some business concerns about dealing with Irotors.com (shipment delays being one I recall), but these rotors are working out well for me!
Z