If you like Nalini Singh (oh my god, LOVE HER!! The Hunters Guild novels are awesome) you'll probably like Patricia Briggs' Mercedes Thompson series, and Ilona Andrews' Hidden Legacy series. Both are urban fantasy. Oh, and Ilona Andrews also has the Kate Daniels series that is super good.

If you want to try historical romance, I really enjoy Mary Jo Putney. Excellent writing, great story lines and characters with some heat.

And if you do want some actual kink, Cherise Sinclair is the best. Like, actually good healthy kink, not abusive relationships masquerading as kink. She's also got just a good contemporary romance series as well, Sons of the Survivalist. Very cute with some suspense.