This time of year I finish cataloging all our photos and video for the last year. Since 2000 I have kept all our photos in a series of directories in the format \2009\01-2009\01-19-2009-XXXX.jpg. I've tried lots of software that does it for you, but like iTunes I don't really like the way software moves everything around dropping crap in all the directories, etc. Instead I wrote some utilities that just let me throw the photos and video in a directory named as above and the scripts rename everything nice and tidy.
This year we created about 16GB of new assets (blue line), down substantially from 2008 which as 34GB. Our kids are getting older now and I think because of this we are slowing down on the picture taking and video shooting.
Around 2008 we stopped using our DV cam all together and started just shooting video on our Canon PowerShot SD450. The quality wasn't as good but the video we shot was more fun and more reflective our life. About half of all our photos are taken on the SD450 and the other half are taken on the EOS 20D. It is about time to upgrade the point and shoot to something that can take HD quality video (are we there yet in form factor that's small with image stabilization?)
Every year when I'm done with all the cataloging I make sure I have a snapshot on the primary and the backup NAS disks, and then just for good measure I make one more copy on a Seagate FreeAgent drive that lives most of its life in our safe deposit box. The theory is that if either NAS fails I have a complete backup. If the house burns down I have a backup that at most is about a year old. The system works pretty well but I wish the offsite copy could easily be make up to date like the NAS copy. Dropbox is my latest cool thing I don't want to live without and it would be the ticket if didn't have to pay for the storage (I just want to pay by bytes transferred).
I think a cool service would be a digital safe deposit box at my bank. I just plug in a drive inside the safe deposit box at my bank and automagically stuff gets backed up there. I get the freedom of backup in the cloud but I can always just go get the physical drive if I want to.
My NAS drives are about full. Total storage is now at about 110GB for the photos and video (redline). I have 320GB NAS drives but the remainder is take up with digital versions of some our video from the 90's and the rest is consumed by our MP3 library. Both of these are pretty static so most growth comes from the behavior above. This is probably the final year for this process. I hope that I can find a good remote equivalent of my sneekernet backup this year.