Merchant accounts with Authorize.Net for Auctiva, or Google Checkout which you can use with 3rd party carts. PayPal is alright if you take things easy though.
Paypay.com is a FRAUD. Do not look to paypay.com as a alternative to paypal.com.
I did my research too late and after opening an account and transferring 100$, the fraud began. The money was never credited to my account. Emails to customer service were unanswered, then deleted.
2 months later the account remains open, but the money remains lost.