Url Rewriting Or Mod_rewrite For IIS

I've got a big .htaccess file which works brilliantly in mod_rewrite for apache. However, the client I want to use it for uses a windows server which is based on IIS.

Does anyone have experience with rewriting urls on IIS. Is it easy, could I easily change this:

RewriteCond %{REQUEST_URI} !^/(.+).php$
RewriteCond %{REQUEST_URI} !^/$
RewriteCond %{REQUEST_URI} !^/products.php$
RewriteCond %{REQUEST_URI} !^/special-offers.php$
RewriteCond %{REQUEST_URI} !^/best-sellers.php$
RewriteCond %{REQUEST_URI} !^/spares.php$
RewriteCond %{REQUEST_URI} !^/images/
RewriteCond %{REQUEST_URI} !^/css/
RewriteCond %{REQUEST_URI} !^/components/
RewriteCond %{REQUEST_URI} !^/Special_Offers
RewriteCond %{REQUEST_URI} !^/Best_Sellers
RewriteCond %{REQUEST_URI} !^/Spares
RewriteRule ^([^/]+)/?$ products.php?show=cats&main_category=$1

Into something that would work. Someone mentioned using asp.net but I've never looked at this before, and can't afford to spend too long this.

Is there a quick/reliable solution (apart from switching webserver).