MSP430 Stepper Motor
I wouldn't solder a motor directly to the output pins of a Launchpad.  You won't be able to source enough current for the stepper -- at least not any hobbyist stepper I've used before.  You can use it with a breadboard, but you won't be able to use the male header because the pins rows are spaced too far apart on the Launchpad to be used with a normal breadboard, unless you use two separate breadboards, one for each side of the Launchpad.

In my project, I'm using the female header option with jumper wires to hook up the Launchpad to peripherals.  So far it seems to work just fine.

The ULN2003A should work fine for now if you don't exceed its current rating, so check the datasheet.  I vaguely recall that it has provisions for external flyback diodes as well, and I feel you'll want to add those if possible.