I looked for your post in the thread, but couldn't find one.  You asked me to back up my assertion:  
http://www.worldwide-tax.com/ This information is from July 2009.  You can see that US taxes are on the high end (excluding Monaco, and a few other countries).  But these rates are just US taxes, and don't include the hefty state taxes that most of us pay.  My tax rate is 45%....and that is on money that I have already paid business tax on.