An eWallet service and a shopping cart interface / payment processing service.
The service allows users to deposit bitcoins directly into their online account, cold store bitcoins, and pay others from the balance held in the online eWallet.
BIPS provides free eWallet and merchant solutions, only charging for currency conversion and premium tools.
site link: https://bitpay.com/
Choose carefully any service that store and manage funds for you. Very few Bitcoin businesses offer enough insurances to be used to store money securely like a bank at this point.