>>See this one
>>http://sqlfool.com/2010/04/index-defrag-script-v4-0/
>>
>>and (http://serverfault.com/questions/80307/best-way-to-rebuild-all-indexes-on-all-tables-in-sql-server-2005/80352)
>>
>>http://ola.hallengren.com/
>
>I did not look at the third one, but the other two seem to be the same, and it seems that they just defrag, not rebuild the indexes (the store procedure was way too long to me to pay attention) :)

Look closer at the comments in the first SP

@rebuildThreshold defaulted to 30% as recommended by Microsoft in BOL;
greater than 30% will result in rebuild instead

I also suggest to take a closer look at the third link.