I just dumped my merchant processor for my small biz last week and have been looking into other payment options other than cash, USPS MO, etc. I just found this one:
Chase QuickPay
Pros - no fees, person-to-person transfers of funs are available, and there are extra services available for small businesses if desired.
Cons - the payer or payee (not both) must have a Chase checking or savings account and be enrolled in the program. So, you would have to open an account and enroll to ensure that buyers can pay you. The payer and payee accounts do have to be based in the US; no international fund transfers.
Also, I didn't see anything about buyer protection like PayPal or credit cards offer, which may make some purchasers balk if they're concerned about getting ripped off.