Backup stratgy with Mac/iphone/ipad

[mfer]

I'm making the switch away from Windows. I don't want to get into why, but rather how to set up my new mac network properly with minimal mistakes.

So, I will have a macbook pro, 2 iphones and an ipad.

I want to minimize putting the iphone/ipad backups on the macbook due to their large sizes (would take up most of the drive). I know I can make a symlink to an external drive, but I also want to backup the macbook as well. I also hear people having issues with multiple iphones backing up to same computer. I have had my issues with this on Windows. I somehow get my wife's apps on my phone and then have to delete them.

I also want to remain as wireless as possible.

So, I know I could get a time capsule for the macbook backups, but I was hoping for something more. Thinking airport extreme with a Western Digital "my book" or "my cloud" connected to the airport extreme. Could that be both my network storage extension for my iphone/ipad backups and my backup area for my macbook pro using time capsule? Thanks for any help/setup suggestions here. The genius didn't have much help to explain to me.