In these pictures the A330 is on the left, followed by the DSC-H50 then the DSC-H2.
The DSC-H2 runs off ordinary AA Cells. It makes a great backup camera.
The DSC-H10 is a little plastic toy. The flash quit after a couple of months.
The DSC-H50 is a GREAT camera. I use it for most of my videos and stills. It does not do wide (16:9) aspect ratio video.
The Alpha A330 is a nice DSLR. However it does not do movies. The standard lens does not do zoom. It is my first professional camera with a interchangeable lens.
I have recently added another camera. It is a Sony Alpha A3000. The A330 does not do video, the A3000 does. I thought I could use my old lenses, and you can with an expensive adapter. However for a little more than the price of the adapter I also bought a standard lens for the A3000.
These pictures have the Alpha A3000 on the left and the DSC-H50 on the right.