I've played with HDR too. Kobafett has some really nice ones, a lot better than what I was able to get out of it.
The thing I really dislike about HDR is that most people tend to overdo it and ends up looking like a cartoon. Just be careful, its really tempting to keep changing the look, but too much and it won't end up looking like a photo anymore.
Here's one that I did that I didn't totally hate.