[PHP HELP PLEASE]* i only want to display certain authors in the side bar

i just started dabbling into the whole php coding part of my site so i dont understand a lot, but what i’m trying to do is just display links to 2 of my authors on my site
currentdose.com
this is the code i added to my sidebar php
<!–sidebox start –>
<h3 class=”block title-1″>List of Authors</h3>
<div class=”paddings”>

• <?php wp_list_authors(‘optioncount=1&exclude_admin=1’);??>

</div>
<!–sidebox end –>

1) i want it to just display specific authors
2) i want to get rid of the dot above and below that are not followed by author names if possible (i dont know why those are displaying and i dont like them)
anyway if you can help thanx!