Hi cagee
Well done on your commitment to get healthy for 2007! I know it's daunting when you have quite a bit to lose but my advice to you is this ....
don't look at the big picture - set small goals and don't look beyond. Be like a hurdler ... think ONCE about the length of the race then set your sights on the first hurdle and no further. Once you've leapt that hurdle then onto the next.
Think of a variety of goals ... not just weight. Dress sizes, certain barriers (getting below 250 for example), exercise goals etc. Soon, the weight lost will be stacking up behind you.
Break the amount of weight you need to lose into 'chunks' ... eg divide it into 10. It's easier to think of losing 10lb ten times than trying to get your head around losing 100lb.
It's all a matter of doing the head-work. Keeping on top of those demons that keep telling you that you can't do it. I've lost 111lb so far since March 2006 ... this last leg is tough because it's easy to get complacent so now is when I have to get tough and see it through.
When I look at my 'before' pics now, I can hardly believe that was me less than a year ago (check my link below if you want to). Stick to your guns cagee and you'll see a whole new 'you' emerge sooner than you think.
Debbie