Spell checking software

[youds]

Hi all

I have a question to put to the Mac OS X community. Everyone knows spelling mistakes can only have a negative impact on a sites rankings and commonly mis-spelled words can have a seriously bad impact.
Up to now, I've been combating the problem of checking alt image tags, title tags and content/keyword description tags by using pay-to-use software that i can run in a flash by scanning the web directory on my HDD via Apache (i enter the url website_name.localhost) so the software sees the web site as it appears on the web. Makes sense

Till now, being a Windows user (up until tomorrow) I have used Inspyder InSite - The Website Spell Checker which is very good. It can scan your web site while it is live or like I do scan it while it's on your local HDD for faster results

So is there a Mac OSX version available? I've found loads, too many - but what do you guys suggest? Do you have a favorite? I don't know any of the software vendors so will find it hard to trust a particular one

Your input would be appreciated, nb: web-based software is of no use because I test and run all web sites pre-publication on a local machine, where these web-based spiders can't crawl. Many thanks