I am having server errors, so I'm wondering if this code is OK?

Hello,

I am getting random blank pages and sometimes Internal server error with WordPress, could anyone tell me if the following code is OK?

Thanks,

<?php
    $recentPosts = new WP_Query();
    $recentPosts->query('showposts=2')
	;?>

<?php $count = 0; ?>

<?php while ($recentPosts->have_posts()) : $recentPosts->the_post(); ?>
   <!-- do some stuff here -->

                <?php $count++; ?>

                <?php if ($count == 1) : ?>

	<div id="post-<?php the_ID(); ?>" class="onegrd">

            <a href="<?php the_permalink() ?>" rel="bookmark" class="big-link"></a>

            <div class="feature-meta">

    <h2><a href="<?php the_permalink() ?>" ><?php the_title(); ?></a></h2>
    <p style="color:#fff; line-height: 15px;"><?php custom_excerpt(250); ?></p>

    </div>

                <div class="image-window shadowbox" style="width: 339px; height: 288px;">
                <a style="position: absolute; width: 684px; height: 100%; overflow:hidden; left: -150px;" href="<?php the_permalink() ?>" rel="bookmark"><?php the_post_thumbnail('large'); ?></a>

						</div>

    	</div>

        <?php elseif ($count == 2) : ?>

        <div iid="post-<?php the_ID(); ?>" class="twogrd featured2">

        			<a href="<?php the_permalink() ?>" rel="bookmark" class="big-link"></a>

            <div class="feature-meta-smaller">

    <h2><a style="line-height: 28px!important; font-size:30px!important;" href="<?php the_permalink() ?>"><?php the_title(); ?></a></h2>
    <?php /*?><p style="color:#fff; line-height: 15px;"><?php custom_excerpt(140); ?></p><?php */?>

    </div>

                <div class="image-window shadowbox">
                <a style="position: absolute; overflow:hidden; width: 150%; height: auto;" href="<?php the_permalink() ?>" rel="bookmark"><?php the_post_thumbnail('large'); ?></a>

						</div>

        		</div>
 <?php endif; ?>

               <?php endwhile; ?>

What I am trying to do here is to customize each post differently in the in a custom homepage.

Thanks,