Which to Buy: Infocus IN78 or Sharp DT-510/XV-3100?

I am looking for a 720p DLP unit and am about to get an InFocus IN78, but then am wondering about the Sharp DT510/XV-Z3100 which were my 2nd choices.

My assessment is that the Infocus is slightly more quiet and the Sharp has is less bright but may have better blacks.

Anyone have experience or recommendations? I have narrowed it down to these, so its one or the other. Already eliminated the Optoma HD65 and some others.

Well it was a last check but no responses before I left for the store - I went with the Infocus IN78. Just paid for it and picked it up!

The DT-510 was tempting I wasnt 100% sure on it. The Infocus seemed to have the better native contrast ratio (3500:1) whereas the Sharp was 2500:1 native, before the Iris bump to their claim of 4000:1.

Also I would have been inporting the Sharp from the US to get the best price on it ($899) - but I would have had no warranty coverage over here. As it was, I spent the equivalent of $1500 on the IN78 locally, but it came with a 2 yr/2000 hour lamp guarantee from the store - and the way local regulations here are here, you effectively get a 5yr warranty on electronics as of right, regardless of what the manufactuer advertises.

So this should do me for a couple of years. Hopefully Sharp will have something interesting and new - and maybe more quiet - by the time I get around to going for 1080P.