I tend to read a lot of mysteries, but I prefer the ones with a little romance. I do not like the hard-core mysteries/police procedurals and such. Thrillers are fine if they feature some romance and a female lead. In fact, any mystery with a damsel in distress, in my opinion, qualifies as a Gothic. There is such a fine line between the two that I find myself reading the synopsis before determining if I will read it. Gothics are now so mixed up in mysteries and romance genres that it's difficult to find them. And the synopsis may not always be helpful.

Check out http://gothicjournal.com/gothlis8.html
and especially the lists on this page for previous years.
More titles will be added to the 2008 list in the near future.

I think you will find these lists helpful.