Which payment processors do not allow for chargeback? I would like to receive a payment for selling my bitcoins. I don't trust the person much, so I will ask for money in advance. However, I'm not sure which payment processors could I use for such a transactions that are chargeback-resistant. I know PayPal is bad for this, but what are my other options?

Which payment processors do not allow for chargeback?
It's a short list.


Cash 
Liberty Reserve (though they did freeze some customer funds recently until they became verified)
Bank Wire (though see comment below)
Webmoney (supposedly)


Here's the payment methods hardness list:


http://en.bitcoin.it/wiki/Payment_methods