Forms with custom field names

Hi guys,

I am creating a form that will collect data and then take the user to Worldpay for payment, then bring the data back to a callback page.

I am looking for a nice form plugin, but I need to be able to change the fieldnames and so far I can’t find a plugin that let’s me do that. All the fieldnames are created as part of the plugin.

There are some great plugins out there, but this feature is really important to me – anyone got any suggestions?

Thanks!