Commando builds - ?

[zipsfan]

Hey all. I'm a lower level commando (18), and I was hoping to get some community input as to which direction to go with my build. I'm sure I'll get a little flak for this, but I was interested in doing something like a 16/14/11 build, or even a 14/14/13 build. I like the aspect of healing but I would prefer to spec up the Gunnery tree far enough to get Grav Round (and possibly one level higher) but I'm also intrigued by the DoT possibilites of using Plasma Cell and speccing up the Assault Specialist tree. Are these realistic builds as far as the utility of a secondary healer with some moderate DPS or DoT capabilties, or am I just too indecisive about picking a tree? I fear that I'm too focused on the positives of each tree and not neccesarily on the way each would affect my playstyle. I would love to hear from some higher level commandos who have gone deep in any of the trees to see what they think