Slow and steady wins the race, right?

I was down another 1.4 this week.  Not this morning mind you, when I was up 2, but this afternoon, after running 3 in the hot sun.  But I'm happy with 1.4 a week, if I can do that consistentlty.  1.4 per week from now until the (maybe) St. Lucia trip in January would be another 40 pounds, and I'm only trying to lose another 30.  Therese bought the Insanity workout DVDs off ebay this afternoon, so we're going to start doing those.  Anyone here have any experience with it?  I hear it's incredibly hard.