@Mechy,
I'm sorry to hear about your Ebay experience. Looking at the seller's reputation, you fared okay. At least you might even be getting some money back. Chalk it up as a not-so-great Ebay experience and learn from it. I've had a number of those, too. Instead of worrying about negative retalitory feedback, just don't leave him any.
A sneaker way I saw described once was to figure out when your opportunity to leave feedback is to expire, and leave him negative feedback right before that time. That cuts down on the window he has to respond with a negative. It was called "feedback sniping" but I can't remember who originally mentioned this. I haven't done it myself, so I'm not sure if it's possible for just a rumor.
I'm not a firm believer in the feedback system anyway since I've seen it abused so much.
Good luck, and maybe some helpful folks here have suggestions on how to get your PAL A600 working in a NTSC world. I'm not too familiar with the 600.
-David
