HDR works very well for landscape photography, but it is enough to write several books on, so for starters go apeture priority with F8 iso 100 or 200 if you have decent camera, and use a tripod and remote trigger.
My advice to Jim is to learn to watch the histogram on your DSLR and learn to avoid blow outs or hotspots. The idea is to capture all the detail you can and then adjust in photoshop or lightroom. I love the subject matter of the bridge and the gazebo, but the hotspots take away from it.
There are lots of people that will get bent because you did not capture it in the camera initially, but what is most important is getting the shot and subject matter. Adjustments are no different than when people developed film. The idea is to tweak it to get the best visual result. It should be easy on the eyes and keep them from wandering.
I made some quick tweaks to Jim's photos for illustration purposes. I know this is taboo since I didn't ask, but I'm not using them anyways.
Original, Lightroom 4 tweaked, and HDR faked, true bracketed HDR