Analog video to Digtal Video Q

[Frebo]

I just bought Canopus software - and I have about 20 or so analog tapes to tranfer to digital I plan on editing the tapes a bit and putting in chapters, but don't know how to do it quite. I have two choices...help:

1: I can transfer all of analog videos to digital video tape and edit them later

or

2: I can tranfer all 20 of them to an external hard drive and edit them later

If I were to use choice 2, how big an external hard drive would I need to hold 20 tapes worth of video??

[junkmalle]

DV is about 13 GB per hour.