I try to create a paypal account one too many times, however it won't work. Are there other sites similar to paypal?

Besides Paypal, eBay also has something called ProPay which lets sellers accept credit cards without an Internet merchant account.

Link: http://pages.ebay.com/help/pay/methods.html

Also, even though eBay has effectively removed the other options of payment, such as money orders, bank checks and personal checks, you can still privately ask the seller if they'll accept one of them in lieu of using Paypal.