First lets clear up something.
The Canon ixus 75 (aka SD750) also has a lens that extends from the body when the camera is turned-on.
You are probably thinking of the cameras with an internal lens, such as the Olympus Stylus Tough 6000.
There are a few cameras that are built for extreme environments, such as the Olympus Stylus Tough 6000.
But they will be well above your price range.
Also, I believe any camera with an internal lens system is also above your price range.
The Canon A470 is Canon's entry level camera and gets very good ratings by the reviewers.
It is being replaced by the newer A480.
Some cameras similar to the ixus 75 (aka SD750) can be found in your price range.
If you want a lot of camera for the price, the Canon A590IS is a good choice.
I saw one today in a Staples store for $125.
Details on all the cameras I mentioned can be found at this link:
I would like to purchase a digital camera in below $160 .
I have select few cameras out of them I found Canon A470 good.
earlier I have used two digital camera of HP and Fuji but got very problems in them.
Can you provide me some guidance which model is suitable.
My preference will be +5 M.P. with goo durability and sturdiness.
Also let me know whether the cameras whose lens are in outer shell lie Canon A470 are better and durable or throse whose lens are in same body like Canon Ixus 75 Digital Camera are better.