Have you thought about joining the May Day challenge in the 300+ forum? Great bunch of people, a lot of support, and weekly weigh-ins to check you're heading towards your goal!
Glad you noted down the date, so you can celebrate! What's something you enjoy that isn't food related, that you can reward yourself with? I used to treat myself to a movie, but have to be careful since movies = popcorn and fizzy drinks in my head!
MyNetDiary is just like MFP and all of the others out there. I actually just got MFP to see what all the fuss is about, and I really like it. I'm going to try it for a month and see how things go from there.
Thanks for the congrats- it sounds pretty cliche but if I can do it, anyone can. I had a pretty big setback where I lost 40 and put 20 back on, but I'm back to where I was before I hit my big slide backwards, and it's taught me a lot about myself and my willpower!