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:
For the past three years I've been using a toshiba pdr m70 but feel its time to move on. Any advice on what to move on to would be greatly appreciated.I use my camera on backpacking adventures aroud the world and found the compact nature of the m70 to be a great advantage.