Which storage engine to choose?

[Arnold McIllroy]

Hello!

I am currently building a web application using .NET and MySQL.
Among a few dozen tables in the database, there will be a table containing member registration details and a table containing a complete list of all users currently visiting the website.

The table containing registration details will be updated infrequently.
The table containing a list of users, however, will be updated almost constantly, as it will store location of each user within the system.

I would like to know, which storage engine I should use in each case and why.


Thanks in advance