Congrats, catesta!
I've been going to the gym faithfully and am now down about 15 pounds (in two months). I've still got quite a way to go, but this is encouraging and I am going to stick with it. I haven't been on any extreme diet but have cut back portions and am not eating any fast food or drinking any pop. I haven't given up alcohol but have cut back there too.
It really hasn't been that hard and I'm someone who doesn't like changing habits. My strategy is to make this a permanent change, not just 'til I lose weight, but for life.
My favorite gym machine is the elliptical trainer, the one where you are in a running motion, arms pumping. It burns calories at a much higher rate than the treadmill and is very low-impact on the knees. I had been doing a half-hour on it every day (which amounts to about 550 calories) but felt I could go longer and am now doing an hour every day (1100 calories! Yippee!). Some days I really have do drag my ass to the gym, but I'm doing it.
I'm inspired by others who are doing the same! Good luck all!