You can get an esimate from several lenders but what you really want are gaurantees on the rate, points & lender fees at the time of locking in your rate, if not then it's just that an...estimate.

Keep in mind that rates change everyday so what is the best deal with one lender today could end up being a better deal tomorrow somewhere else. Also remember that you will be dealing with your loan officer / lender for 30 days or more...That means service could be compromised when only basing your decision on price alone.

More info. on lending or estimates let me know and good luck to you