My primary computer at home has approx. 1.4 terabytes for HDD storage (4 drives of varying capacity). I'm getting close to running out of room. Games take up most of the space for executables, but the biggest culprits are all the DVD images I've backed up.

As soon as these WD 2.0 terabyte drives become more widely available, I'll be picking up a couple - if for nothing else than backup to the backup.