In reply to m4doyle:
I've climbed at Montgrony several times. October is usually a good time to go, if you're unlucky it might still be quite warm but you're high up and so have a good chance of catching a breeze.
You don't mention your grade range, but it's worth pointing out that Montgrony is generally very steep, and the climbing is better in the higher grades. Neither the quantity nor the quality is so high in the 6s, certainly not enough for two weeks.
The other major crag of the area is Gombren, which has a couple of impressive sectors and is probably more interesting if you're climbing in the 6s. El Clot de l'Espasa is also supposed to be quite good in the 6s, though I've never been.