Get a paypal account if you do any eBay buying/selling. This guy may or may not accept it ...in which case you are basically stuck with writing a check/money order and take your chances.
Paypal lets you use a credit card or, they prefer, to draw directly from your bank account (ironically to avoid their having to pay credit card transaction fees) for purchases - a boon for people who don't have credit cards. Paypal accounts are free and even the personal account can accept 5 incoming credit card transactions a year (at a hefty 4.5% transaction fee, though). That is how I sold my Mustang seat to a forum member a few months ago. I, of course, ate the fee because I didn't want to pass that along to the buyer, but it was a total of $15 ...big woo ...
The biggest selling point to Paypal is the way a transaction is handled. Unlike 'pull' technology - used by credit cards - where anyone with the right account information is able to tell Paypal, "Hey, this guy owes me this money, give it to me" ...Paypal uses 'push' technology where you say, "Hey, I owe this guy money, give it to him".
It sounds dangerous, (it IS dangerous) but I've had a paypal account for ...well, just about as long as they've been offering them ...and I've NEVER had any problem with them. You just have to be careful and don't fall for any of the email scams targeting paypal ...which is basically pretty easy if you simply understand that PAYPAL WILL NEVER SEND YOU AN EMAIL. I have never ever ever had a legitimate email from paypal ...ever. If they need something from you (like signing their yearly privacy agreement), they will just wait until you legitimately log in again and give you an information screen.
Yeah, ok ...sure ...I'm pretty much screwed if Paypal is ever compromised and their account data is stolen, but it's still better than transmitting my actual CC information to every tom, **** and harry all over the GoreNet.