Mobile Merchant Account

I’m looking to invoice customers via email and have them pay in a secure and trustworthy way by credit card.
I need a reliable source and the best possible deal.
Cheap rates and good service.
No monthly or transaction processing limits.
Transaction, Transfer, and Processing fees need to be a minimum!
I need to be able to accept all major [...]

I am in USA zip code 10925 and am helping a friend set up a multi-purpose link to the internet, handle voice telephone communications, and also be able to do credit/debit card transaction processing, maintain their website, etc. all through one link up which me guessing, will probably turn out to be a cable link [...]