Just wanted to wish you good luck! I can't cut out red meat! I lovvveee a good steak, a good burger and roast beef too much. I am however limiting my intake of it.
As for taking the vegetarian lifestyle, be careful to get the protein you need from other sources and be mindful of your eating, I know several people who changed to vegetarian and gained weight.
How long have you been at weightwatchers and the elliptical if you don't mind me asking?
I've tried ww sseveral times and I have an initial large drop but then I can't loose any more, and after tracking with sparkpeole I found out I wasn't eating enough calories. Sparkpeople has always worked well for me becaues its a place where i can track everything(calories, fat, carbs, protein and many more) and there are tons of articles, and little things that I can earn "points" for and it keeps me going.