Way to go! Sounds like you've made some excellent progress in the first month so good for you!!
I'm on a learn to run program and some days are really tough, but I'm sticking through it. My first goal is to lose 50 lbs. I would be content there but I really would love to be down to 160, which is a 70 lb loss.
I tried running outside once but wasn't able to run the last of my 3 reps. I ran in a hilly area, in 30 above temps and I was sick with a cold. Since then I've been too chicken to try it again.
Anyhoo, good for you. I bought my first pair of quality running shoes too and what a difference!! I still get shin splints on occasion but I think that may be just because I'm pretty heavy. I hope those will go away as I lose weight.
Keep us posted! Love hearing about the success of other chicks who are running!