Código PHP:
$seleventos="select distinct VcEvento from TEquipos where CStatus='a' order by VcEvento asc";
$reseventos=mysql_query($seleventos, $area3) or die(mysql_error());
<html>....
.
.
.
<select name="evento" id="evento">
<option value="none" selected>Seleccione</option>
<option value="indif">Todos</option>
<?php
while($roweventos=mysql_fetch_assoc($reseventos)){
echo '<option value="'.$roweventos['VcEvento'].'">'.$roweventos['VcEvento'].'</option>';
}
?>
</select>
.
.
.
</html>