This Plugin gives you the possibility to hide the Dashboard before selected users. 
It is very flexible, since it works with an extra capability “Hide Dashboard”. 
This capability can be assigned to one or more roles and/or as an extra capability to one or more users.
Users with hidden Dashboard will be redirected to their profile-page.
You need also the “<a href="http://www.im-web-gefunden.de/wordpress-plugins/role-manager/" title="Role Manager Plugin for WordPress" rel="nofollow ugc">Role Manager Plugin</a>” for this Plugin.

IWG Hide Dashboard

"Hide Dashboard" hides the dashboard for all users with the capability "hide_dashboard".

ternstyle

The Rich Text Biography Plugin allows you and your WordPress users to edit your profile biographies using WordPress’ built in WYSIWYG editor. Download, install in your /wp-content/plugins directory, activate the plugin and you’ll be editing your biography in a rich text interface in no time. No coding necessary after plugin activation!
<h3>Features</h3>
<ul>
<li>Edit your profile and your user’s profiles biography with tinyMCE’s WYSIWYG editor</li>
</ul>

Rich Text Biography

The Rich Text Biography Plugin allows you and your Wordpress users to edit your profile biographies using Wordpress' built in WYSIWYG editor.

IWG Hide Dashboard vs Rich Text Biography