Apologies. Didn't realize your post was a month old already. I'm sure you're all set up by now.
You shouldn't need an NTSC-PAL converter unless your TV is absolutely ancient. Heck if you're using component, VGA or HDMI to hook up your Xbox, you aren't technically even making use of an NTSC or PAL video signal.
Hey there. I see you also have an NTSC console. I got my friend to bring me an ac adapter from the UK and it works perfect with the voltage output in za. But now I have to sort out the signal output to my tv. I have seen a lot of these NTSC PAL video out converters. Do you use one of these and where can I get one in ZA?