I am thinking of getting one for backups. Any advice would be good! About 40 to 80 Gb would be fine (I think) Driven from USB or external power? How reliable, not much good if small "glich" renders backup useless! Best makes?
i have a usb caddy which i bought from click here and i have been using it without any problems and it has been invaluable for taking data from a to b (didnt need a new hdd as i already had an 80 gig spare)
If you have a spare hard drive lying about you can buy an enclosure, basically an external box, and put it in that, they're only about £20-30.Ifnot then you have to buy an external drive, you will probably find that it will not run from USB power alone but as far as I know they all come with adaptors. There are lots of good makes and I can't recommend any in particular as I used the enclosure method to make up my own drive. They are pretty reliable, pretty close to the hard drive in your computer which is after all what they are made from basically. Make sure you have USB 2.0 as USB 1.1 is too slow.
The caddy is the way to go.I have two ICYBOX ones,which are cheap at £20 each.The only fault is the power connector~it is in the style of a S-connector.The reason being it can easily fall out ,if you have to frequently move the caddy around. However they are good.Just find a hard drive to fit in it.