I went near enough vegan in Feb and have lost nearly 30 of your American pounds. Best thing I've done for my health in many years, but I didn't just substitute regular crap food for vegan crap food, but replaced pretty much all processed foods with whole foods.
As a confirmed meat and dairy eater I would have never have usually considered such a radical change to my diet and I went 12 months from first considering it to actually doing it, but once the decision was made to try it out I went from "normal" to whole food vegan overnight and haven't missed anything I though I would. That said, I have since eaten a bit of meat on special occasions like a BBQ with friends, or going out to a steakhouse with colleagues on a leaving do and I don't intend on putting people out at Christmas so I'll eat meat then too but 99.9% of the time I don't eat any animal products.
I suggest your watch Forks over Knives
http://www.forksoverknives.com/ and if interested read the Engine 2 Diet
http://engine2diet.com/ book which was the thing that got me into it.