I'm looking to buy a small portable projector for Keynote presentations. Any general recommendations would be welcomed, but I am most interested in knowing whether DLP projectors are worth the extra dough (about $300-500 on average, from what I've seen) compared to LCDs. Also, is it worth spending more for resolutions above 800 x 600? I'd prefer to spend under $1,000 but I'm willing to go somewhat higher for a real difference in image quality. Thanks!