MySQL
Depending on the size of information and simultaneous users. Access is a easy to use relational database system supporting up to 100 simultaneous users. However this slows down the network a great deal. If you want to have a more secure and more powerful dbms than you should look into
MySQL, or Oracle. If you have only 5 people using the system, than Access may be your cheapest and best bet. Remember, when using DBMS's you want to get yourself the most effective output, for the smallest amount of cost(time, money, and resources).
