Too many tomatoes?

We are installing four - 4x8 beds this weekend and two full beds will be for tomatoes. I'll be growing 8 San Marzanos in one bed and 4 Sun Gold Cherries and 4 Cherokee Purples in the other.

I've never grown a vegetable in my life, so I'm curious how many tomatoes this could yield if conditions are right. It's just my husband and I, and we'll be sharing with my in-laws. Hopefully making lots of pasta sauce and salsas.

Is this too many plants?