Windows 7 64-bit - which USB/JTAG adapter should I choose ??

On the tail end of my most recent attempt to get our Olimex ARM-USB-OCD adapter to work with this machine, I’d just like to get some feedback on what options I have for JTAG adapters on this OS …

Are there any available which do have reliable, known-good Win7-64bit drivers, that will install without any flaky magic tricks, and will just work??