6.1.5 amd64 and hot swapping drives?

[Carl Brewer <carl%bl.echidna.id.au@localhost>]

G'day,
I have a LAN server running 6.1.5 amd64, on a Gigabyte GA-B75m-D3H 
motherboard (no eSATA port, I think).  I want to hook up a cheap esata 
drive caddy to it and do big backups onto hard drives on it if possible.

A quick google around doesn't tell me all that much about how best to do 
it - the mobo has usb3, but I'd prefer to use a sata port if possible.

any suggestions or pointers to doco on how best to do this?

thanks!

Carl