With the many different video formats and types of projectors available, it can be a bit difficult to determine what is best for your church. My first advice to you is NOT to look at home theatre or other consumer products like you find in electronics and business supply stores. The equipment you need and the selection process for Church application is completely different.
You may be familiar with Power Point which is a great program for sermon notes and slide shows. For music and scripture verses however, it can be quite slow and cumbersome to use.
Easyworship on the other hand is very easy to use and powerful. In addition to song and scripture, it projects video clips, live video and Power Point. It also comes with a "site license" which allows you to use it on as many computer as you want as long as they are somehow associated with your church.
This wireless mouse controls your computer up to 100 feet away and because it operates on Radio Frequency, it doesn't need "line of sight". The system consists of the small USB receiver plus a hand held control unit. It provides the mouse functions including scroll and two-button control. It also includes a laser pointer.
This wireless mouse is perfect for use with projection programs such as Easyworship and Power Point.