Sarabeth,
First let me welcome you to the health boards. You will meet lots of wonderful people here. All the women here are truly friendly and encouraging!! All age ranges!
You should join the summer weightloss challenge, it ends soon but you can still join, it will then turn into a fall challenge of some sort. You post your start stats (only if you want to) and how much you want to lose by the end of that challenge. You'll receive tons of support there. We all do different types of diets. I usually do lowcal/lowfat, I lost 30lbs doing this. I am not able to stick with that diet, so now I'm trying the 3 day diet and considering doing low carb, almost Atkins style.
Do searchs on this board, or just read on the different posts, you'll see at the bottom you can go back through like 10 pages of posts!!
Good Luck to you
~Shel