Depends on what your calorie intake is and how many
calories you will be burning during your workouts. You need to burn off 3500
calories/week to achieve the 1 lb loss. The best way to lose weight is to add
cardio for a quicker calorie burn although you said you weren't planning on doing any.
Strength training doesn't burn as many
calories as a good run, but if you aren't taking in that many
calories, you can probably do it without the
cardio since muscles burn
calories by themselves. Sounds like your
diet is just right, small portions and no junk. Keep a journal of your
calories for the week and know you need to burn at least 500 extra
calories a day to get down 1 lb.