So while looking at CCTV systems and more exterior lighting, I signed up for Amazon Glacier long-term offsite storage service.
You pay about 1p ( or 1c ) per GB, per month for long term storage of any data you want. If you need to pull stuff back, you can have 5% of your total for free per month, above that you have to pay them about 10p/GB! It's purely designed for archiving digital data that will never be touched again except in extreme circumstances. You have to pay them if you want to delete anything within the first 3 months of uploading it, after that there is a free deletion allowance. If you want data back it takes about 5 hours to prepare it for you. I guess once they have it, the devices store it and they power them down or bury your data in some dense storage silo somewhere in their distributed network.
I'm just going to put my DNGs ( digital equivalent of photo negatives ) and PSDs ( the edited Photoshop files ) there at the end of each year. That way I know if make a right balls up of my files here at home someone has my back covered. I might even stick small JPG copies up there as well, as the price will work out to about £3.50/month once I'm done with everything up to the end of 2012.
You don't access it directly like some storage places, you have to setup codes and keys, then access it using an interface you have coded yourself. Luckily you can simply download an app called FastGlacier that does all that guff for you, you simply throw files at it and it does all the hard work of organising how the data gets to the storage at Amazon. You can also rent services from other vendors but that means paying more money out for them to maintain the file indexes when you just have to do that yourself, the indexes are a few MB at most. I can back them up on a USB or CD and leave them in my drawer at work for safe keeping.
Now it's going to take several weeks of overnight uploading get 350GB of initial data to Amazon!