Geocode Longitude and Latitude

This project is for an application which can read either from a csv file, access database or excel spreadsheet does not have to be all 3. The data provided would be address, city and postcode. The application must skip any entries that do not have correct data in and save it as a separate file The output file should contain: Column 1: Original Address Column 2: Latitude,Longitude according to Google Column 3: Address verification according to Google Column 4: Latitude,Longitude according to Yahoo Column 5: Address verification according to Yahoo Column 6: Latitude,Longitude according to Terraserver Column 7: Address verification according to Terraserver Column 8: Latitude,Longitude according to Ibegin Column 9: Address verification according to Ibegin Column 10: Mathematical average Latitude,mathematical average Longitude for found locations. Must work for any country around the world Alternative or additional geocoders to the above will be considered. The file may be large and due this size , optimization is a must. Maximum accuracy is important. Please do not round up or down geocoder results. Application should have a running counter so user can see how many records have been processed so far during runtime. Some good sites to find most of the work already done: [login to view URL] [login to view URL] Budget for this is very small since most of the basic code is in the in two sites above. 100% of bid chosen will be placed into escrow and released upon demonstration or delivery of project.