IDC connectors (2x5) and flat ribbon cables are OK. There is no need for any special tools.. just vice.
See here:
http://www.iceinspace.com.au/forum/a...se.php?a=65266
In case of 2x5 IDC connector, you have to split cable first, if you want only 5 wires, or, you just leave all 10 wires.. One row of connector sockets and 5 wires will be un-used, but this doesn't matter really.