What's the quickest way to get multiple loan estimates?

[Robert Muzyka]

I'm looking to purchase a deal with conventional financing (my first investment outside of my homestead).  I have a deal I'm interested but in order to fully analyze it I need to know more about the interest rate and points I may need to pay.... I've spoken with one lender but it took a long time to go through the pre approval process and finally get my rate and terms.  If I want to get other options quickly, do I need to go through the full pre approval process all over again with 2 or 3 different lenders?

Also, what rates are you guys seeing right now for 30 year fixed, or 5 year or 7 year arms?