The time has come for me to get a replacement lamp for my Mitsubishi HC1500 Projector. I know there are a bunch of bulbs available on eBay for around $150, but I'm assuming these are "knock off" bulbs that won't last as long, etc. I'd prefer to get the official bulb for my projector so that I can expect the same performance and life from it as my original bulb. The question I have is where is the best place to buy the original bulb, preferably without spending over $300 for it. I've looked at the BestBuy website and a couple other "reputable" places, but even on those sites it's hard to tell if what they are selling is the authentic bulb or just an overpriced "knock off". So another question I have is what's the best way to tell if I'm getting the real thing or not?