Tips on number of disk partitions and size with Mac Os and Win

Partitions for Mac OS and Win OS:

I am going to set up my Mac Book for the first time now. I have been using windows a lot but I am all new to Mac. In Windows, I use one partition for Win OS and all my programs, and one for all my user data. I was thinking of having the same scheme on my MBP: One Mac system / program partition (Mac OS Extended Journaled), one Mac user data partition (Mac OS Extended Journaled), one Win OS / program partition (FAT) and one Win user partition (FAT). Is this possible with Mac Disk utility and boot camp? Having separate OS/program partitions and user data partitions makes things easier if one have to reinstall or upgrade OS. My SSD disk is 480GB. I will be using Win and Mac OS approx. 50/50% . How much space should I set aside for each partition? 50-80GB on each OS partition and the rest divided equally between the user data partitions? Anny thoughts around this would be most welcome.

Regards Trond