[Plugin: Simple 301 Redirects] Will this work for what I need ?

Hello,

it seems this is what I need, but not 100% sure.

My client used to have a html site that I migrated to self hosted wordpress, using the same domain name.

I left the old html pages on the server, but would like to redirect them to the wordpress site.

The page URLs have changed, so as an example, a former URL that was

http://mydomain.com/dummy-page-url.html

could now be

http://mydomain.com/category-slug/new-page-url/

I mainly want to avoid duplicate content issues with Google.

please let me know.
cheers
Florian

http://wordpress.org/extend/plugins/simple-301-redirects/