Sometimes certain shops, offline and online, will offer a 57 or 58 kit with a cable and a free stand, but you have to be patient and wait for it. Bought a 57 a few years back and got all of the accessories for the same price.
57 is not a bad choice for someone starting out. Durable, relatively cheap, and can ALWAYS be used for something. There have been several shoot outs with the 57 and other higher end mics and the darn thing just generally works well enough for most any purpose, even if that means processing to make it work. But, it is less sensitive to handling noise, bad rooms, and interference. Not a bad deal!
You just may need a better preamp than the MBox 2's built-in preamps. Something with more gain and a little more character, otherwise you may hear some noise in your recordings when you have to crank the levels up. It just depends upon your style of music or what source you are recording.
"To be a great producer, music has to be a big part of your soul. And when it comes to making music, if I could invent a way to get it from my heart into yours, without doing all that hard work, I would be very happy" - Brian Wilson