Canon Powershot Memory Card
the amount of video on a 1GB memory card hold in my Canon PowerShot?

I know that take place around 250-300 pictures, but just curious to know if I can take a decent amount * video with it if I did not want to take my camera with me somewhere.

It would depend on the model Canon Powershot that has … for the SD870 IS, 3 minutes 57 seconds for a memory card of 512 MB – at least 8 minutes for a 1GB memory card. (In video mode 640×480 at 30 fps better) http://www.usa.canon.com/consumer/controller?act=ModelInfoAct&fcategoryid=145&modelid=15655