my boyfriend and i are going through the same thing- we just met with a lender this past friday. If you get a copy of your credit report (which they SHOULD give you when pulling your credit) you should take that with you to other lenders, but what he said was that if you do most of your lender look ups, try to do them within a 2 week period... if you do them randomly (2 this month, 1 next month) it hits your credit harder.
If you have good credit, you should try to go with a local bank or something like Wells Fargo. Make sure once they pull your credit that you act within 60 days or else that have to re-pull it and again, that will hit your credit. :)
btw- you ARE entitled to your credit report so whoever you give the permission to- ask them for a copy for your own records ;)
going through it!