David Sklansky is my favorite author. It feels strange giving him advice instead of me reading his advice.
Thanks for deleting Thremps post. Thremp was a good poster for awhile. He had been getting too aggressive and rude lately. I hope he comes back nicer. Now onto the point:
The advice on kettlebells and free weights is good advice.
I would not buy a Nautilus or Bowflex at all. I have been training 10+years, I can military press more than 170 lbs and I weigh around 250 pounds and I have bench pressed 400+, and I own a Total Bodyworks 5000. This machine is awesome for what pot odds you get for the price.
The Total Bodyworks 5000 is basicly a knock off of a Total Gym and both are very good. You can do over 50+ different exercises and you use your own weight as resistance.
A new TotalBodyWorks 5000 is under $100 online.
I would get one of these for a fraction of the Bowflex price and add some freeweights and kettlebells and dumbells.