I am using Time Machine with a 320 gig WD My Home.
Time Machine is the easiest way to go, you just plug in your external and you're good to go.
I have heard that you need double the size external as your internal. I have exactly the same for both. I just keep an eye on my Time Machine and when it gets full, I just reformat the drive and start over. I only had to do this once in a year.
Run to CC and get what they have left.
What did you end up doing?
How's the new MacBook?
I am still a little unsure which way to go due to not knowing if I can back up the programs on my and the daughter's MacBooks. Is that possible?
Long story, but I had to wipe the HD due to my company buying the extra 2 gig (total of 4), but wrong RAM. So in retrospect, I needed to back this now cooking with gas MacBook, before adding the RAM. The Apple Genius worked on this MacBook over three days before finally finding it was the RAM causing my crashes. Live and Learn.
I was thinking about the the Time Capsule for the now multiple Macs in the house or a WD external already formatted for Mac. I probably will do the later and keep the current 160 gig for the 3 PC's in the house. I am still a little unsure which way to go due to not knowing if I can back up the programs on my and the daughter's MacBooks. Is that possible?