What is the best way to store fruit in bulk to make smoothies?
In professional smoothie/frozen youghurt/fruit shake shops, you'll usually see the fruit frozen in small pieces for easy portioning.
So raspberrys and blueberrys are fine, but you'd wnat to quarter strawberrys and cube mangoes or apples or kiwis or whatever before freezing them.

The freezing process itself is important to the strucutral integrity of the fruit, and will affect its texture. However, if you only want them for smoothies/blended drinks, that isn't very important.

As a usage note, remember that a home freezer compartment is usually at -4 degrees Celsius, whereas a chest freezer (deep freeze) would more commonly be at -18 degrees. A good blender won't mind either way, but your lips might find it a bit cold.

Also, you might find you can buy the fruit pre-frozen from the same vendors the shops get them, in which case it will be prepared for you, and all you need is to defrost and blend. Aside from saving you the work of peeling and chopping, their freezing process may be better, and it'll probably end up being cheaper too.