pgmfi.org

I own a Civic aerodeck (european) 1999 with the d15z8 engine.
I´ve been reading from the library, and from what i´ve been able to understand, stock ecu´s are obdII but dont have 16 pin connect.
Can you guys please help me with the following:

What can i do to plug it to a computer and start experimenting?
Is it recomended to change the stock ecu?

Can you recomend some more reading for me.
I´m currently enrroled in an electronics degree, but i´m still in my 4th month.... so i just know about ..... very little.

Thank you

Xico
Lisbon, Portugal