Index: src/wp-admin/css/install.css
===================================================================
--- src/wp-admin/css/install.css	(revision 28967)
+++ src/wp-admin/css/install.css	(working copy)
@@ -316,10 +316,9 @@
 	max-width: 450px;
 }
 
-.language-chooser select {
+.language-chooser fieldset {
 	margin: 1px;
 	padding: 8px;
-	width: 100%;
 	display: block;
 	border: 1px solid #ddd;
 	-webkit-border-radius: 0;
@@ -334,9 +333,12 @@
 	font-size: 16px;
 	font-family: inherit;
 	font-weight: inherit;
+	overflow-y: scroll;
+	height: 250px;
 }
 
-.language-chooser select:focus {
+/* TODO:add focus style via JS */
+.language-chooser fieldset.focus {
 	border-color: #5b9dd9;
 	-webkit-box-shadow: 0 0 2px rgba(30,140,190,0.8);
 	box-shadow: 0 0 2px rgba(30,140,190,0.8);
@@ -349,4 +351,25 @@
 
 .language-chooser p {
 	text-align: right;
-}
\ No newline at end of file
+}
+
+.language-chooser input:checked + label{
+	  color:white;
+	  background: #0074A2;
+}
+
+.language-chooser label{
+	display:block;
+}
+
+.screen-reader-input,
+.screen-reader-text {
+	position: absolute;
+	margin: -1px;
+	padding: 0;
+	height: 1px;
+	width: 1px;
+	overflow: hidden;
+	clip: rect(0 0 0 0);
+	border: 0;
+}
Index: src/wp-admin/install.php
===================================================================
--- src/wp-admin/install.php	(revision 28967)
+++ src/wp-admin/install.php	(working copy)
@@ -202,14 +202,17 @@
 	case 0: // Step 0
 		if ( $body = wp_get_available_translations() ) {
 			display_header( 'language-chooser' );
-
 			echo '<form id="setup" method="post" action="install.php?step=1">';
-			echo '<select name="language" id="language-chooser" size="15">';
-			echo '<option selected="selected" value="">English (United States)</option>';
+			echo '<fieldset>\n';
+			echo "<legend class='screen-reader-text'>Select a default language</legend>\n"
+			echo "\n";
+			echo '<input type="radio" checked="checked" class="screen-reader-input" name="language" id="unitedstates" value=""><label for="unitedstates">English (United States)</label>';
+			echo "\n";
 			foreach ( $body['languages'] as $language ) {
-				echo '<option value="' . esc_attr( $language['language'] ) . '">' . esc_html( $language['native_name'] ) . "</option>\n";
+				echo '<input type="radio" name="language" class="' . esc_attr( $language['language'] ) . ' screen-reader-input" id="'. esc_attr( $language['language'] ) .'" value="' . esc_attr( $language['language'] ) . '">';
+				echo '<label for="' . esc_attr( $language['language'] ) . '">' . esc_html( $language['native_name'] ) . "</label>\n";
 			}
-			echo "</select>\n";
+			echo "</fieldset>\n";
 			echo '<p class="step"><input type="submit" class="button button-primary button-hero" value="&raquo;" /></p>';
 			echo '</form>';
 			break;