Heh, I cheaped out and bought the cheapest GF4 4200 I could find; a "Palit" brand.
It lasted about 6 months, then it died. It's currently in transit back to Palit. I must admit, their RMA service was top-notch. Got an email back within 24 hours, complete w/RMA number and instructions.
It would be nice if they at least send me a newer (8x AGP) 4200. *crossing fingers*