There's a big niche waiting to be filled in Plastic Surgery as I see it. As more and more procedures are done as an outpatient (increasingly in an office OR suite), things that can facilitate an easier recovery or lower cost for surgery are going to find a place in the market. Post-operative pain control and nausea prevention are two of the single biggest fears patients report on surveys when they're considering having surgery done.
Another real interesting thing out there is a drug called Emend (aprepitant). It's a new anti-nausea medicine that works different from other medications in that it actually blocks receptors in your brain that mediate the nausea response on a biochemical level. It must be given prior to anesthesia and is very effective (apparently) at preventing post-operative nausea and vomiting (PONV) for 48-72 hours. This drug is being used mostly for chemotherapy patients currently, but the potential for use in the outpatient Plastic Surgery patient group is obvious.