Hi,
MEGA65 is a modular system. You don't need to use or buy a floppy drive if you don't like one. SD-cards are and will always be supported. However, basis for the MEGA65 is the C65 so we are starting with it's original case. There might be other versions from us but I think you should just build YOUR perfect machine YOURSELF ;) We will try to help you in the process and in sharing your progress with the community if you like...
cheers,
Deft