Yes. However, each auction is setup by the seller and he selects the terms of the auction.
You can review all the Payment Options for each individual auction listing by selecting the Payments & Returns. (see picture below)
All site fees, can be paid via mail in check, online bank transfer or through PayPal which excepts credit card transactions. There is a small service fee that PayPal charges for handling the payments which is based on the fee amount.
(see "Selecting the Payment Terms" under the Setting Up Auctions section)