I'm using Xenu for broken links for many years and it is free. Just click here for more information at this link http://www.seomoz.org/blog/xenu-link-sleuth-more-than-just-a-broken-links-finder You can create xml reports, excel or text reports, sitemaps, missing alt tags reports and so on. The only disadvantage is fact, but cannotthat you can't replace brokenlisted links...
