Would going to a boxing gym only once or twice a week be any good?

[donnydarkoIRL]

Pretty much for health and self-defense purposes (should the situation ever arise).

Cool; well if I could offer some advice then, I'd use the boxing sessions for as much technique as possible and then break up the rest of the week between conditioning or strength exercises.
A lot of the time thats what I do. I use the boxing gym specifically to develop my boxing and then for fitness/strength (and vanity ) I have an entirely different program of training.