You will probably end up applying to somewhere around 10-20 DO schools. Depending on how your MCAT turns out you will be reasonably competitive at just about all of them. Rather than worry about which ones you think will accept you, try to find which schools you'd like to go to. Do you want an urban or rural setting? Any favorite areas of the country? There's an excellent thread on the pre-osteopathic forum in which current DO students give reviews of their schools. When you've made a rough list and you've taken the MCAT, post a new thread here and we'll give you an estimate of your chances for them, and whether you should be applying to additional schools that are more or less competitive.
Don't be too scared of the MCAT. It tests on the material you've already learned in class. Therefore, if you can get good grades in your prereqs, you can do well on the MCAT too. Getting a good score will take plenty of work in studying, but it's nothing you can't handle. It's also quite possible you'd get in with a score less than 30, but why try to find out? When acceptance season comes around you will want to be sitting on multiple acceptances so you can be the one to decide where you're going for med school.
Don't put any effort into getting into an MD school right now. If you brought your GPA up to a 3.4 or so and combined it with a good MCAT you might have a pretty good chance, but that kind of GPA improvement would take 1-2 years of full time classes at a perfect 4.0. There's no grade replacement for MD, so the law of diminishing returns kicks in fast. The more credits you have, the slower your GPA will rise. It isn't worth the time or effort. Every year you would spend trying to boost your GPA would be one less year you'd be able to work as a doctor and earn a doctor's salary. A good enough MCAT, say 35 or so, will be enough to make some MD schools overlook your cGPA, but you can't plan on getting an MCAT that high. If you do end up with a really high score then by all means apply to MD schools, but for now, plan on DO.
