I just bought a macbook pro today (my first mac), and have a few questions regarding time machine. I heard that it is best to use an external drive. But I'd imagine it would be a pain to constantly get up and grab my external HD, and plug it into my mac everyday. Is there a way to do this over my network? Can I just grab a western digital external drive and connect it to my router for automatic backups? How would I connect my external drive to my routers ethernet port? I don't think I want the Time Capsule because I don't need another router, and it is a bit expensive. And if I have my macbook backing up over my wireless network every hour, would that slow down my internet?