Hello 'danog',
Wow, you're an intrepid soul, making a remark like that around here. 🙂 How did you manage to buy - and sell - without one? Perhaps things were different in the past. Anyway, to buy you do not need a paypal account. You do, however, need a valid credit card. Some folks say a prepaid card will work too. You might find a few sellers who will wait for a money order, but so many promised money orders and cheques never actually show up it is not particularly popular.
If, however, you have a credit card smouldering away in your wallet, you're good to go. After you buy the item, you click 'Pay Now', and the next page you see has your price info on the left and payment choice on the right. The credit card option is the top one. Click to go to your payment options, enter your card info - exactly as it appears on your card billing address - confirm, ... and then wait for the item to show up at your door.
Happy shopping. 🙂