The Toshiba M70 is an upper-end camera with lots of manual features. The specs show that it even has an F2.0 lens, which is faster than most cameras around even today.

Thinking along those lines, I think you should take a look at the new Canon G6 camera (it just came out as a replacement for the G5).

It looks like a good next step for you.

There is a preview of the camera at: