MSDE for large volume and high no. of users?

Hi,
We need to use a free database for a project because of tight budget.
Is MSDE ok for handling large volume of data and 70 - 80 users?
My understanding is that MSDE is optimized for 5 concurrent users.
Is MySQL better than MSDE?
Thanks,
BenA web app with 70-80 concurrent users (if it's well built) shouldn't beto busy for MSDE to handle. The high volume of data is the biggerissue, since MSDE databases are limited to 2GB maximum. Yes, fora large application, I'd look elsewhere simply becuase of that, andMySQL is one option. PostgreSQL is another.