Node title setting

Hi.
Auto nodetitle is greate.
However I didn't find how to set multiple terms as title?
Basicly I have a content type with 3 required dictionaries that are "keywords" for me.
I'd like them all to display as title.
At first I tried this php code (to obtain first capital letters and get all 3 taxonomy terms):

$terms = taxonomy_node_get_terms($node);
$name='';
foreach($terms as $term)
{
   $name.=' '.ucfirst($term->name);
}

return $name;

BUT it works only if saved second time (at first time saved I thinks the taxonomy of this node is set after - that's why the title is empty).

Right now neithe [term] nor above code gives me the right solution...
[term] just produce one term title with small first letter of term name
the code works at second time user saves it (but my user won't even have ability to edit it to save one more time)
Hope for answear.