I think I have pretty much narrowed down my choice for my first bike on the Giant FCR line up. I am having trouble deciding on which model I should get though. I am 6'3" and 305lbs. I will be using the bike primarily as a commuter to lose weight and save money on gas and I would like to go on recreational rides after work and on the weekends for as many miles as I can build up to. My belly is too big for a road bike so I want to get the straight bar design until I can lose enough belly mass to fit comfortably on a road bike without my knees hitting my gut on the way up. If I could lose the weight I want to lose in about a year or two should I get the model with the cheaper components? Or since I plan on putting in some serious mileage over the next few years, should I invest in more quality components so I dont have to worry about breaking etc?