I'm a first time student borrower. Anyone have any advise on a good student private loan to apply for?

I'm starting grad school this summer in allied health. But I know the Federal Stafford loan is only going to give me half of it; I'll have to fill the rest with private loans. I was wondering if there are any loans agencies with a good rep for decent interest rates and good customer service (not trying to rip you off); if such an agency exist :)