Lobster:
The comments about the shale being a good sign are probably related to easier drilling through shale versus crystalline bedrock (saves $). The idea that you can increase flow by installing a well is most likely true. The reason to have a professional evaluate the situation is 1)to make sure that you do not throw away drilling costs in case there is not an aquifer that is capable of producing what you need (and to estimate the cost of drilling, i.e, depth); and 2) to make sure that your well will not have an adverse affect on wetlands, other wells, etc. that may be upgradient of your location.
We have 1-inch of ice but no snow, it can hold off until Christmas, too much work to be done.