New Post: Show 'Pay by Cheque' only to specific role

You'd have to do something with CSS like add a text/html module to the page, make it so that it does not show to that role, put some CSS in it that hides the button and text.

I recently added some classes to those parts of the ASCX so that one can do this type of thing...
.ManualGatewayButton{display:none} should do it
Regards
Rob