What is the best way to make backups on my MacBook Pro?
I have an external hard disk connected to an AirPort Extreme. Time Machine wirelessly backs up my MacBook Pro to it. In this regard, it works the same as TimeCapsule but as the hard disk is external (and you get to choose it), it doesn't suffer from the same reliability problems.

I've found the AirPort Extreme to be a very good Wireless Access Point, too (and not just for Apple devices).