payment gateways for pro sites

Hello, back again. I noticed that for the pro sites and the membership, you can choose only 1 payment gateway. But wouldnt it be better to offer several payment gateways?
In order to sell in holland, its the best way to have the modules of multisafepay and sisow being available for the customers. Not the regular provider of ideal, they count about 40% more fees. For them its allright, but for the merchant or for the client not.
If I provide the apis, could someone take a look at that?

Thanks
Frenk!