I created a custom login signup form. I wanted to share the code I used and solicit feedback and if you would have wrote the code in a similar way or totally different. If anyone wanted a custom signup button instead of the usual login form, just copy this code into a block and add your signup image to the files folder. (On my site I also used a custom block-block-2.tpl.php file to blank out my sites normal block themeing).

<p align="center">

<a href="<?php $current_page = $_GET['q']; print base_path(); ?>user/register?destination=<?php print $current_page; ?>"><img src="<?php print base_path(); ?>/sites/default/files/signup.png" /></a>

<a href="<?php print base_path(); ?>user/login?destination=<?php print $current_page; ?>">Returning users login</a>

</p>