what image size should I use?

[Surfn]

Originally Posted by Marketa

Hi, can you please advice me on size of the images. I'm about to submit to all review sites and I want to present my site as best I can.
At the moment I have images 400x600 pixels,
but I have been checking other sites and lots of them have somewhere around 795x518.
Should I redo them into bigger size? That would be around 1200 images, which is not that bad, but more is coming.
Please tell me, because I really dont know if it is woth redoing.
Thank you
Marketa

600 on the long side with a compression of between 30-60k is good