How do you change the wordpress category URL on a by category basis?

How do you change the wordpress category URL on a by category basis.

i.e.

http://mysite.com/category/postname.php

I want it to be able to pick on a per category basis between:

http://mysite.com/reviews/postname.php
or
http://mysite.com/category/postname.php

Anyone know how to do this?

 

This plugin will do the trick.

http://skyphe.org/code/wordpress/decategorizer/

 

Thanks at lot

 

If I wanted to point a category to a specific url in wordpress, could it be done?
For example, I want the below url which is currently automated

http://www.mysite.com/home/?cat=17

to point to

http://www.mysite.com/events

Thanks.

 

Yes, it could be done. But first you would need to change your permalinks, then use this plugin: http://wordpresssupplies.com/wordpress-plugins/no-category-base/

 

Forgive the amateur response, but what am I changing in the permalinks?

 

I want to have multiple WP installed on each section. Its a magazine blog. So /events would have its own WP homepage and would /news or /business etc etc.

So it important to point to a domain and not just change how the url reads.