The easiest and yet very professional looking way of making a video would be animoto.com
If you have pictures, you select the music and and titles, and you can tell a great story. If you take good pictures, that is. You can also do the same with videos instead of pictures, on animoto.
The key here is to use images and videos that are done in well lit environments. And audio needs to be as clear and noise free as possible. This can be solved by using background music and telling your products story visually. At the end of the day, Lighting and Audio make a great video... well and great product/story
Hope this helps! Again this is if you are starting out and want to do it your self and not waste too much time, and still get a great result.
Outsourcing, if you record your own footage its very easy to find a person to edit and compile that for you. As for recording you need an actual person nearby. Contacting Film departments at your near by university or college might be a great place to start looking for cheaper price, as this can get expensive. But the students should be familiar with HDSLR technology that is rocking the film industry with great images coming out from cheaper cameras and combined with great lighting and audio you can get great videos.