Find Student Loan Consolidation

I just graduated and I am trying to consolidate my student loans. Right now, they are with two different comapanies which offered me a 7.14% and 7.25% interest rate respectively. I called another company who had sent me literature, and they offered a 6.125% rate for the first 36 on time payments, then it will drop to 5.875% after that. I thought this was a good deal, but people keep telling me that it is an awfully high interest rate on a student loan. Does anyone know if a lower one can be found anywhere, and if so with what company? Is this about the best deal I will be able to get?