Thanks for all your responses, sorry for delay in responding. I'm in Australia, it's just after 6am now.
I agree that multiple backups onto laptop and external hard drives is better than just my work flow, but I was trying to keep
the weight and bulk down for backpacking.
Phil, yes the jpegs were mainly to view on ipad and not for backup. I only have the 16gb ipad air, so could I view the raw
files without downloading them onto the ipad? Otherwise I don't think I'll have the space.
Rodeo joe, thanks for the warning of how long it would take to backup in camera, something to consider. I have 5 spare
batteries from my d7000 that was stolen, so hopefully not an issue.
I also like the idea of cloud storage, but how long would that take even if I had my laptop? I could maybe just upload my
jpegs.
Thanks again, I will re read your answers when I'm at work (in my break of course) :)
I'll try and respond to the few things I have missed