Christine Feehan has a series about "Ghostwalkers" people with natural psychic talent that were enhanced through a special military program.. There is a ton of suspense, mystery and romance ;) The first book is called Shadow Game Also Julie Garwood books have all of those perimeters as well :) I LOVE THEM!
Some good books with suspense, mystery, and maybe romance include Judgment in Death (In Death, #11) by J.D. Robb, The Midnight Queen by May Agnes Fleming, The Place of Honeymoons by Harold McGrath, Deception by Casey Pendleton. Check out http://www.publicbookshelf.com/mystery/ for more information.