I think if you are going to be shooting for that long you will come back as a professional and teach us all some tricks.
May I make a couple of suggestions.
1) You should learn a little about 'in camera editing' techniques.
Basically this is shooting with a rough edit in mind.
So shooting 'establishing shots', 'cutaways', holding shots for 10 seconds.
You will probably learn all this yourself on your trip but a little bit of prior knowledge would help a lot.
It would help you by reducing the amount of footage you shoot and help you decide what would be useful to film.
2) Look into 'cloud' based storage. This is where you upload your footage, your data, to remote servers.
I don't really know too much about this but I certainly agree with others that carrying all your footage on external hard drives has 'disaster waiting to happen' written all over it.
Maybe look into some sites like 'dropbox' and 'clesh'
- Thanxs for your tips but I know already know scripts and are using it (except the last Panasonic Trial) - I followed a short course camera journalism and almost finished the book Directing The Documentary. Besides that I watch documentaries, analyzing the scripting and reading about a lot in my spare time. Lately I'm practicing scripting and storytelling with camera interviews. My latest is about a man who makes glass art made with a canon hf 100.
- Yeah could based storage would be great but I will travel mainly in a region where the internet connections ar not that fast Central Asia, Iran, the Himalaya and parts of China. So uploading will be a pain in the a....
- Gravitade. - Yeah I know, and I will create two backups all on solid disks. Thinking of sending one disk home and when it arrives home and a friend mad a back up there, deleting the back up I have on the road. (edit) O I just red some of you also suggested this.
Next thing on the preparing-for-filming-list = have to find out if I can do a pre -edit and aftherwards save and re wrap my footage into comprimized stuff and reconnect it again at home. I hope it works.