What MOS should I enlist in, in the Marine Corps?

So I am gonna be doing the DEP for the Marine Corps soon. I am still slightly unsure of what MOS I should choose though! My bro is an infantry grunt, and he says that while it absolutely sucks being infantry, he would have it no other way. So I am most likely leaning towards infantry (yes people, I know the dangers and stuff! If I wasn't willing to risk it, I wouldn't be enlisting in the Corps!) So just wondering if anyone had any other ideas on a good MOS? Anyone know what a Combat Engineer is like? How about Field Arty? Thanks for your help in advance! =D