As an owner of an Optoma, I find their products are unreliable. Mine was sent back twice in less than three years. I know that all company's have problems, but do some research on AVS and I think you'll find Optoma's are the worst. That said, my sister has an Optoma and never a problem. Regardless, I'd rec'd the BenQ.
Why is there NO perfect equipment, only compromises?
If you can hold off for a few weeks you might want to check out the Optoma HD25-LV.
I own the HD33 but am looking at the 25 for the increased brightness and contrast.
Also longer lamp life since it uses a Philips lamp rather than Osram.