I'm interested in this. But any reason why you can't accept paypal? It's the standard method around here. Cash, money order, and western union is not safe for the buyer, so do do you have any heatware feedback?
I don't use PayPal. The only thing I can really say for trusting me is that when I purchased this keyboard from GH (here's the link to that thread
http://geekhack.org/index.php?topic=16541) the guy that bought the fukka (wanabe) accidentally received my keyboard and I received his, he shipped mine to me and I shipped his to him. I'll PM him and see if he can vouch that I handled the mix up professionally, for whatever that's worth. That's the only user to user transaction I've ever done so I haven't had any reason to make a heatware account or something similar.
If someone has really positive feedback and is a known/trusted member around here, I wouldn't be entirely opposed to receiving payment after arrival of the keyboard. Idk, I would obviously prefer to receive payment first but I completely understand that it could seem a bit sketchy if it wasn't done through an escrow like PayPal.