I need to buy a JTAG cable for programming a Spartan 3 and a Spartan 6 FPGA. I already have this one: http://www.digilentinc.com/Products/Detail.cfm?NavPath=2,395,523 <http://www.digilentinc.com/Products/Detail.cfm?NavPath=2,395,523&Prod=JTAG- USB> &Prod=JTAG-USB for the Spartan 3, but it does not fit the 2x7 connector on the Spartan 6 board. It looks like I need to buy either this one: http://www.digilentinc.com/Products/Detail.cfm?NavPath=2,395,922 <http://www.digilentinc.com/Products/Detail.cfm?NavPath=2,395,922&Prod=JTAG- HS1> &Prod=JTAG-HS1 or this one: http://www.digilentinc.com/Products/Detail.cfm?NavPath=2,395,716 <http://www.digilentinc.com/Products/Detail.cfm?NavPath=2,395,716&Prod=XUP-U SB-JTAG> &Prod=XUP-USB-JTAG. I am not sure I understand the difference between them, what would I be getting extra if I bought the more expensive one? Thanks Rob