Import of city data, hotel data, and multilingual translation?

We are a travel website with 28,000+ cities/locations globally where we can sell accommodations.

1) Will the import feature allow us to import that amount of city information by csv file?

The data for each city would include:

• City Name
  
State / Province
Country
Latitude
Longitude
URL (that links to our server to get show the hotels in that city/location)

It would also be good if it could store our own ID for each place so that we can update each data row, if needed.

2) Also, once a user selects a particular city, would be also be "drill down" and be able to map individual hotels in that city using the above csv data? (In some cities, such as Paris, we have thousands of individual hotel locations).

Like the above we would have the hotel name, address, latitude, longitude, etc.

3) Are people using this with GTranslate (we use) for multilingual maps?

Looking forward to hearing from you.

Thanks. -- Rik