All the cables came with both my Asus and MSI boards below, unfortunately not round ATA tho
I also got cables with my Fast Track 2000 controller and Highpoint 1540 Controller... so I have loads of wires lol.
ZadoK if you are worried about losing your data then you should definitely have RAID -1 setup. This mirrors one main HDD onto another hard drive. The hard drives must be the same size and you wouldn't get full use of them both.
2x 200GB Hard Drives when mirrored only show up as 200GB instead of 400GB. Anything that is written onto one drive is copied onto the other, so if one drive fails the other is there so that you don't lose any information.