@roxymama BEWARE!
Well, sort of, but I've got everyone's attention. There is a problem with the vast majority of running form videos, websites, cults, etc... Most of the advice is EXCELLENT... for fast runners. (For me, fast is 7:30 m/m or thereabouts.)
So far, I've found nothing that addresses form SPECIFICALLY for, say, the 10:00 runner. Jason at StrengthRunning, for example, did a little video study on the differences, but never gets around to saying how exactly slower runners should approach their form, as some advice (step lightly, glide along the road...) just isn't applicable. Some of us weigh too much and go too slow for that kind of thing. (I do recommend Jason's program for ITBS, however.)
But, some groups (like the Chi running people) at least address different speeds.
@BuckeyeBama is right that form can have a big impact on injuries and speed, and trying to force a form change can also slow you down and hurt you. (When I finally abandoned trying to 'land on my midfoot/forefoot, I got a lot faster.) If you decide to find a coach, do a lot of research first, as not all coaches are equal. (One I know of is an advocate of 800mg+ of ibuprofen as injury treatment. Not going to that guy!)
In all my research and limited experience, I've found 2 pieces that I think are universal:
1) "Landing underneath you"... I've found that keeping the head up and the arms back (i mean way back) really are key to this. Basic physics... if you're slouching forward, your body will have to compensate by letting your legs drift in front of you more. It feels silly at first (if you're a bit of sloucher like me), but it doesn't look nearly as odd as it feels. Also, practice by running in place a for a bit, then gradually drifting forward to give your body an idea of how to move. You'll need to develop some new muscles in the thighs as you'll be letting gravity help more.
2) 180 steps per minute... If you're not already at this, the steps feel super tiny, but they aren't as short as they feel, and it doesn't take long to get used to it. Again, a different set of muscles will be getting a workout as you're lifting your legs a lot more often and taking more steps for the same distance, so look out for that. (Sometimes, I end up faster than 180.)
Other than that, do check out all the videos online. There is good stuff out there and you may find something specific to you that you know you want to avoid or try. And don't get suckered into trying to land directly on your forefoot. Look up 'proprioceptive heel strike' to see what I mean.