I fiddled with HDR when it first came out and it can add a lot to a shot but be careful cuz you can overdo it quite easily. One suggestion if I may.... post the before and after pics so we can get an idea how dramatic it can be.
psst.... any shot with lots of sunlight, water and sky with nice cloud formations works pretty well.
I'll be looking forward to seeing more now that you dug your camera out. :thumbup