How to direct payments through 2 active gateways?

[haskell]

Lets say there are 2 options and BOTH need to be used eg FirstData and Authorize.net, each with their own Credit Card processors.

How can both gateways and thus processors be used? One idea for example was one payment would go FD and then the next one would go Authorize and then the one after that back to FD again and so on ie sequential alternating between the 2 options unbeknownst to the user. But how to achieve this? Is there a module or something that can do this?

Another idea was to set limits such as up to $200 payment goes through the FD gateway and over that through the Authorize gateway.

[Dmitry_Fedyuk]

Magento allows multiple bank card processors work simultaneously.

A customer chooses a processor during its checkout.

[haskell]

What if the only payment method is credit card and YOU want to remove the customers choice since you want both gateways to be used (doubt most customer would care for FD vs Authorize)?

[Dmitry_Fedyuk]

All the standard payment methods has an option to be available only for the specified countries' customers.

[haskell]

Is the alternating option possible somehow? (just like load balancing or not putting all your eggs in one basket)