AppMgr III (App 2 SD)

If you are running out of space on your phone's memory because of all your apps and are running Android 2.2 or higher, then give Apps 2 SD a shot. It scans your app catalog and lets you know which apps can be moved onto your SD card. Also notifies of when newly installed apps can be moved as well.

Market Pages:
Apps 2 SD - https://market.android.com/details?id=com.a0soft.gphone.app2sd
Apps 2 SD Pro - https://market.android.com/details?id=com.a0soft.gphone.app2sd.pro

Links:
Developer Homepage - http://android.a0soft.com/download.htm
My Homepage - http://www.rgddesigns.com