I love having all 50,000 Apps at my fingertips. But with so many apps, how do you find what you want? There are a few ways that I like to use.
The App Appsniper works great. It list all new apps, discounted ones, hot apps and etc. This app is in the Appstore and cost $0.99.

If you are a tweeter you can subscribe to PriceChanges. They have all the price changes of apps. For an example, the app Peggle is now $0.99 and Need For Speed is $6.99 down from $9.99.

Whatever way you choose make sure you find a way to stay up on all the App deals on the Appstore.