Server for running Paypal like payment processing service
I am currently writing a business plan regarding my e-commerce project, involving payment processing service like PayPal.I would like to ask for your suggestions regarding the following issues:
1) What kind of Server will I need to purchase to run the service smoothly?
2) What kind of Bandwidth will I need?
I presume having not more than 5,000 members.
I appreciate all your help.
Thank you in advance.