I've start learning some time ago Symfony... but i consider it now to big for my needs. What framework more light do you recommend. I need something stable, light, not so customized in syntax.
I've started using the Yii framework its pretty decent and claims to be the fastest around. Yii PHP Framework: Best for Web 2.0 Development checkout Top 10 Ranking PHP Frameworks for alternatives.
My vote is for Yii too. Though I can't predict it will suit all you needs but it's light and clear and a way more simple than Symfony.