I've had very good service, and prices from this outfit:
Light Bulbs, Rope Lights, Halogen & Fluorescent Light Bulbs
one order arrived with a broken HPS bulb, no problem, they shipped me a replacement IMMEDIATELY, and a free UPS pickup slip for the broken one ... they're in Texas, if I remember correctly ... I am using the 'Hortilux by EYE', that came with my lamp setup, but the guy at 1000 bulbs isn't too fond of them ... he said they have a LOT of short-life complaints with the EYE, and recommends the Phillips or Sylvania, etc.. ... I also bought a couple of their cheapo $12 400-watt HPS, but haven't had need to try them yet ... :smokin: