Congrats on the weight loss. I am sure a lot of people here, including myself, would like to hear the details on what you did.

As for the bike, if you are interested in a Ti bike you might want to look at Habinaro Cycles. They get good reviews and you get a bike for around the same price.

http://www.habcycles.com/road.html

Something else to consider: The bikes needs to fit you. Have you had anyone do a bike fit on you so you know exactly the type of geometry that you need? For example, I looked at the bike you are considering and it wouldn't fit me because the head tube is too short.