Creating new spells

[Aldest]

I'm trying to wrap my head around how creation of new spells would go. If someone would like to correct me that would be great.

Essentially if I want custom spells I need to do the following:

Create the spell in the MySQL database.
Edit the spells_us.txt to match the database and ensure it is the same reference number.
Distribute the spells to the clients.

For Titanium you'd still be limited by the max number of 8000 correct?