Aha Saira gave you a really good list to start of with already. But my most recent favourite is
My Name Is Khan. Brilliant story and acting, though not much dancing I fear, still it has Shah Rukh Khan AND Kajol together again in a movie! WIN. I was tearing up through the whole movie so if you do decide to watch it, walk with a towel.
Also
Kabhi Khushi Kabhi Gham and
Baghban, both of these feature Amitabh Bachchan and he used to be the King of Bollywood until Shah Rukh sorta won the title from him. But that's beside the point, they're both beautiful movies and once again, they brought a lot of people to tears. 8D
And last, if you want something upbeat and with really good songs that you could dance to then try
Salaam-e-Ishq.
I've grown up on Bollywood movies since I am of Indian decent

so I shall try to go through our DVD collection and make a list for you sometime.
