It wasn't too bad when it hit Puerto Rico, but they say it is getting stronger. Those of us in SoFla are not likely to be directly hit, but it is still within the realm of possibility. Your focus is better spent hoping for the best for our friends further north in the Carolinas. They currently have the greatest chance of living where Irene makes her next landfall.
And for fuck's sake, my neighbors, if you live on the ground level east of I95, and have family encouraging you to stay with them for a few days on the second floor west of I95, pack your shit and go there Wednesday afternoon before the mandatory evacuations clog the streets. Don't be a complacent idiot like my otherwise brilliant sister in-law. Google the phrase "storm surge".