Apologies if this has already been brought up several times...
Can a person say in their ad, "I accept Bitcoin"?
Or would it be a smart move to embed the Bitcoin logo in the lower-right corner of every image you upload, to let people know you'll agree to settle the amount in Bitcoin after they win the auction?
Ebay does leave "payment method" to the discretion of the seller, at least they used to.
Ebay/Paypal probably hates BTC though, so the "secret handshake" embedded BTC embossed watermark in the lower-right-corner of every image might be the best idea.
Thoughts?
The logo would be the best bet i think. you don't need to price anything in btc because the calculation can be done by the mtgox spot rate at the time of payment. I think ebay and paypal will have no choice but to work with btc in the near future.