http://www.nikonchat.com/hdr-nikon-d3000/

What digital SLR camera should I choose?
I'm new to SLR photography and I am looking at buying a new digital SLR camera. My previous camera was the Sony Cybershot point and shoot. I mostly take photos of nature macro or landscapes. I'm looking for one with at least 10 megapixels, Autobracketing (for HDR), built in the stabilization of (anti-shake), it would be good but most of my work is to use a tripod. My budget for the camera and objective of the kit is $ 500-750. I've been looking at a few different cameras Sony A300 Canon Rebel XS nikon d3000 Which one is the best option? Feel free to add additional options.
Look at the Pentax KX
HDR Photography