Welcome aboard, I think. ;) This thread actually belongs in physical fitness, but we'll work here.
You didn't say how far off the run you were, but I am assuming that it is quite a bit, based on your tone. The only way to really improve that is to keep running, unfortunately. A few recommendations.
A typical recommendation with shin splints is to stop running until they heal. If you have seen a doc, follow his advice. If you can't stop running, start running (jogging) on a treadmill for awhile. The treadmill will absorb some of the impact and lessen the damage on your legs, helping them to heal.
Another recommendation is to check your stretches. Make sure you stretch well before and after your runs. Make sure the stretches are actually working the areas you need done. If you have seen a physical therapist, ask them what good ones are. If you haven't or cannot afford to, perhaps checking with your local college physical education department may help.
Check your shoes. Simply because they cost a decent amount from Sears and are a name brand doesn't mean they are good for you. Make sure it is a running shoe, not a cross trainer. Get the right running shoe (trail or road) for the type of running you do. Trail has less give and more support for hills, mountains, etc (think cross country), while a road shoe has more cushion for running on streets and sidewalks.
If you can afford it, get fitted for your shoes at a good shoe store. I got the store recommendation from my physical therapist. They will ensure you get the right shoe by checking (and generally videotaping) your stride, pace, etc.
Finally, and you knew this was coming since you put it in your post, you likely need to work on your weight. 214 is too heavy for your height; you should be closer to 150-160. Now, it could be you are musclebound and that is the reason for the weight, but most Americans do not meet that standard. The less weight you carry, the less stress on your cardio and the less load your legs have to absorb the impact on. Which, in turn, helps with the shin splints.
Good luck.
You're allowed to have a life, you know. I read it in a manual somewhere. - Eugene Matuzak - Timecop