Authorize Net Merchant Account

I need a merchant account and payment gateway (processing cc) for my company based on the Web. We operate from Singapore. From what I understand:
* Paypal is regarded as unprofessional - not an option
* Authorize.net works with all MSP (Merchant Service Providers)

That is why we need a good MSP. Can anyone help?

You will not be able to use Authorize.Net because they only work with the United States and Canada based MSP. These MSPs will not sign U.S. and / or Canadian businesses merchant accounts.

Paypal is very professional as the service you choose to use.