Yamaha YPG-235 and Mac?

I want to buy a Yamaha YPG-235. I have a Mac computer and I have heard that there may be some problems with Yamaha keyboards and Macs. I want to be able to take a midi file on my computer and transfer it to the keyboard so it will play it back and I can learn it. I hear that the Musicsoft Downloader is the only way to transfer the files back and forth, but it's for Windows only. So, is it even possible for a Yamaha keyboard to teach me how to play a midi file through the Education Suite that they have on the keyboard? And is there any other program that can transfer midis to the keyboard? Any help is greatly appreciated. Thanks!