In the morning I wake up, have a coffee with dry whole wheat toast or sometimes one of those bran cereal bars if we're out of bread. Go to school, have lunch which is normally a whole wheat sandwich(lunch meat and mustard), some fruit, and water. After school I head to the gym(I walk to the gym from school, as well as walk home from the gym).
I work-out about an hour and a half most days. I work on two muscle groups a day(Bi/Triceps, Chest/Legs, Shoulders/Back) doing two or three exercises per muscle group, three sets of 10-12. Afterwards I hit the bike for about a half hour. For the first 10 minutes I stay at a steady 90 RPM at level 3, then for the remaining 20 minutes I alternate between 80 and 120 every 30 seconds. It says I burn about 250 calories.
Dinner is where I'm not so good with diet. I basically eat whatever is being made unless I make it myself. Normally salad, water, and whatever the main course is. I try not to snack too much, maybe a banana while watching t.v later on.
Anyway, how does that look? I'm trying to lose weight, but also get more toned. I weigh about 175lbs at 5'12"ish. Is there anything I could add or do to improve? I know the coffee in the morning probably isn't the best, but I'm pretty addicted. I can't function without it!

Thanks.
Edit: Just one more thing. I know it's probably somewhere else, but if I want to get toned is lifting lighter weights at more reps better?