I just re-read the thread mostly because Im also also trying to drop a few more lbs. One thing I would like to share is that I also 'had' the mentality to lift real hard when in the gym. I've come to the realization that its not more muscle Im I want but less body fat. This spring when I started training I did everything I've always done, squat, DL, BP, cleaning press/jerks, and I gained 10lbs. I was so pissed off with myself.
Then one day I peeped into the room where the cardio class was in session. It was 5 minutes after they started and half the class was on the floor, it looked like they were going to die. I went the next week and also lasted about 5 minutes. That was the point where I completly abandoned my old train of thought and went all cardio. I have since been to dozens of these classes and use the insanity disks. Im down 17lbs and lost 5% body fat. Those gains/losses are based on 6 fist size meals and a food journal.
Unfortunatlly, we have to also check out thinking when aiming to meet goals, once I tried something different I got the results I was after. Good luck. And also check out the sugar free jello cups, I almost live off them when Im training real hard.