As jmduke7 stated, you don't want to mix rotors and sprays. By the time your rotors have put down enough water, the sprays will have drowned the flower beds. Besides, the watering needs of flowers vs. lawn are usually different, so its usually suggested that they be placed on seperate zones.
But if you have a situation where you don't want to install a new circuit and can easily tap into the existing circuit, it's possible to mix rotors with drip irrigation. The tricky part will be to match the precipitation rates, but that's possible using adjustable drip irrigation emitter devices like these (http://www.sprinklerwarehouse.com/detail.aspx?ID=170
. Many other types of adjustable devices are available all over (web, wal-mart, other big box retailers). By using adjustable sprays, you'll be able to use some trial and error to increase or decrease the flow so that you get the right amount of water to the flower bed during the time rotors are running.
You will have to provide pressure regulation and filtration to the drip irrigation section with components like these (retro kit http://www.sprinklerwarehouse.com/detail.aspx?ID=1705, component http://www.sprinklerwarehouse.com/SearchResult.aspx?CategoryID=397 ).