Which payment gateways are you using?

eWay Rapid3.1 is a huge one in Australia and now the UK and US

www.eway.com.au/developers/api/rapid-3-1

It is not difficult to implement either apparently.. They are very helpful and have the PHP code ready rolled.. THey also have online chat for questions etc.. and a developers sandbox for testing..

Process Payment example
Create Access Code

{
"Payment": {
"TotalAmount": 100
},
"RedirectUrl": "www.domain.com.au/results"
}
Process Card:

<form method="post" action="api.ewaypayments.com/Process">
<input name="EWAY_CARDNAME" type="text" value="John Smith" />
<input name="EWAY_CARDNUMBER" type="text" value="4444333322221111" />
<input name="EWAY_CARDEXPIRYMONTH" type="text" value="01" />
<input name="EWAY_CARDEXPIRYYEAR" type="text" value="18" />
<input type="hidden" name="EWAY_ACCESSCODE" value="{ACCESS_CODE}" />
</form>
GetAccessCodeResult

api.sandbox.ewaypayments.com/AccessCode/{ACCESS_CODE}

Hello Sir,
We are in the Netherlands and we use Ideal.
Kind regards,
Jurjen Velzel

Here in mexico we use dineromail

ccavenue

we use webpay powered by Interswitch

Process payment example:
<script type="text/javascript"
src="banknamewebpay.bankwebsite.com/customerp...tServices/UPaybutton.
ashx?mercId=<merchant_id>"></script>
<script type="text/javascript">
upay_settings.setAmount(<amount>);
upay_settings.setOrderId(<order_id>);
upay_settings.setProduct(<product_name>);
upay_settings.setEmail(<customer_email>);
</script>