I bought some of the Case Logic hard drive cases, which I continue to use today. The cases outlast the drives.
Here is a link to those cases in Case you want them.
I haven’t done a lot of research on hard drives. I have read about which ones are doing well, but when I get to the store, often there are newer models available.
My preference is the firewire connection hard drives. But with the prices on these so high and the availability of choices so low, I have only a few of the firewire drives. Most of my drives are the newer USB-3 or, the older USB-2.
Whatever at the time is the largest hard drive with a competitive price is what I have been buying, and most of the time, I drive to Frys, which is close to my home in Roswell, GA.
Two external hard drives
When I travel, I always carry two external hard drives. One is a complete mirror backup of my Macbook Pro 15″ computer. I use SuperDuper! For cloning my hard drive. I do this about once a month. Usually, my next trip is what prompts me to back up
If I ever have trouble on the road, I can do a complete reinstall from this hard drive or launch from this hard drive by holding down the option key when starting my computer. In addition, by choosing the external hard drive, I can now run off of it. The advantage here is now I can run DiskWarrior to clean up any problems on my hard drive while I am on the road.
I have had to save my bacon more than once with this backup.
The other hard drive is for images and photos. So I ingest all my memory cards using PhotoMechanic; the destination is always the external hard drive.
I will leave you with one last tidbit. I also have CardRaider Photo Recovery when I need to recover images from my memory cards. I accidentally mixed cards up and formatted them before I ingested them. I thought I had one card in my hand and had reversed them. This software is for the Mac.