Firdaus Zahari

This plugin allows users to set their passwords during the registration process. Once activated, a password field will appear on the registration field which uses the same functionality as the password field you get when you’re resetting your password.
The email notification sent to the new user is also modified to indicate a successful password set.

FS Registration Password

Allow users to set their own password during site registration.

Dannie Herdyawan

Showing login, register or lost password form modal popup with ajax.
Features:
<ul>
<li>Modal form with overlay or simple popup form.</li>
<li>Shows a login or registration link for not logged in users that pops up on click.</li>
<li>Provides shortcodes for use in posts and widgets</li>
</ul>
Shortcode:
<ul>
<li>[ciusan_register] for showing registration popup link.</li>
<li>[ciusan_login] for showing login form popup link.</li>
<li>[ciusan_logout redirect=”home”] redirected to homepage after klik logout link.</li>
<li>[ciusan_logout redirect=”current”] not redirected to everywhere after klik logout link.</li>
</ul>
Special Thanks to:
<ul>
<li><a href="http://fellowtuts.com/author/Amit/" rel="nofollow ugc">Amit Sonkhiya</a> who has made an great tutorial at here “<a href="http://fellowtuts.com/wordpress/wordpress-ajax-login-and-register-without-a-plugin/" rel="nofollow ugc">WordPress AJAX Login and Register without a Plugin</a>“.</li>
</ul>
Notes:
<ul>
<li>For better results, I recommend using “<a href="http://plugin.ciusan.com/29/ciusan-restrict-widget/" rel="nofollow ugc">Ciusan Restrict Widget</a>” with this plugin.</li>
</ul>
<a href="http://plugin.ciusan.com/134/ciusan-register-login/" rel="nofollow ugc">Ciusan Register Login</a>

Ciusan Register Login

Showing login, register or lost password form modal popup with ajax.

FS Registration Password vs Ciusan Register Login