What kind of digital camera do you suggest to buy?

I saw couple of good articles on this site ; opendigitalphotography.com and i beleive they are updating it to give some good replies on such questions. you can start from thier "how to get the best camera for your cash" guid. i also highly urge you to define what you need your digital camera to do for you, then try to find proper information for that. this site has a good aproach. also try to see dpreview.com , they offer a big deal of reviews as well.

casio......my digi cam fall many times and its still working well

This is what I tried when looking for a digital Camera, I went on Google and typed in Digital camera reviews, and I found ratings and reviews on the best brands, In my opinion, FUJI and CANON are the best cameras that you could buy.