Sexy. REAL sexy.
Professional pics? Waste of money for the purposes of this site IMO.
If a girl looks fanTASTIC on a consumer SLR, even a good point and click or hell, even a cell phone. Then that's the girl I wanna see. In fact, the better she looks on the crappier the camera.the more interested I am, often (maybe oddly).
Any provider on here likely has a client with a high end amateur camera who'd gladly shoot them for free. Look sexy, find someone with any kind of artistic (or at least, competent) eye and you're set.
With the cost of quality cameras for the non-professional; These days you pay a photographer for his editing skills and ideally you need as little editing as possible. Not to bash photographers, plenty of need in other areas.
When so much effort goes into the perfect professional modeling photo the chances are that's not going to be lived up to in person. THe pictures of food on menus or TV always looks better than what you get even if it's good