Vegasdood,
Don't pooh-pooh the effects of situps and crunches. Getting dsome muscularity into that spare tire will make it look better. You can lose a pound of fat for evey pound of muscle and though wout weight will be constant, your waistline can be smaller and the extra muscles acusaally will burn more calories.
Congrats on the weight loss...I think 155 sounds like a good weight for you.
(I'm getting impressed with that neverending HIP HOP ABS commercial that blares 24/7. Sort of like crunches to music.
Now if I can get the discs for free somehow!