The advantages of 16 bit mostly apply to editing. It's better to work with more colors to avoid posterization or banding in solid colors like sky. But for printing it doesn't really make a difference. Most printers don't actually print in 16 bit anyway, and even if they do it hasn't been shown to make a discernible difference because the human eye can't discern that many colors anyway. If your prints look great with 8 bit editing why change? But since it is better to work with 16 bits when editing you may want to consider a program that will. My suggestion would be Photoshop Lightroom. For the vast majority of people who shoot RAW and don't do a lot of special effects type things, it is more than effective enough. Its a lot better for organization, is non destructive and does most everything you need right within the program itself. And a lot cheaper than CS whatever.