Indeed, it's my second 1.2 TB disk in just 3 months time. Indeed shooting footage in HD format, and storing original copies in HD format takes up a lot of space. I guess I'll scrap some of the original footage at some point and only keep the edited & compressed versions...
And downloading all these new video podcats AND storing them takes up a lot of disk space too...
Nevertheless, I just chained this disk to the first one with a firewire cable. Potentially several dozens can be used simulateneously...
As I said earlier, I would bet on stock of storage companies...