Is the Canon SX40 right for me?

I run a website about toy cars. I shoot almost exclusively model cars under standard flour lights.

I have a SX13o that has served me well. However I want to improve the quality of my work

First steps is of course myself. Been studying about what my current camera can do and try to better understand how these cameras work.

The camera I have is damaged and I need a new one.

The SX40 looks good and within budget. I don't need the max zoom features of the new 50.

Will this SX40 be the right path? I wanted to stay with Canon as perhaps it is similiar in operation and will be easier for me to learn. Maybe the SX500 is all I need to improve?

I am not printing any photos, online only.

Any help appreciated.

Thanks

Harry