I know this thread is old, but I figure that this may be usefull for some people.
If you want to check your page rank and you don't have Internet Explorer, or you have it but don't want to install google's toolbar, you can still check your page rank:
1. If your website is in the
Open Directory, then you can browse
google's directory to find your site. Next to your site will be a small graphic showing your page rank. (the image is from 1 to 10). This will only give you an estimate though.
2. An easier way though, is to use
this tool, which will tell you the exact page rank for a few sites at once.