You should give YAME at try, it also plays GB, Nes, SNES, but it emulates the Turbo Grafc the best:
http://www.geocities.co.jp/Stylish/2068/yame.html
YAME also has CD emulation, but you will need to dowload the system card(s) to use it. As far as CD emulation goes it is a good as the Magic...