While we're on the subject of photography?

the macro magnification is actually more inportant than the focus distance - ie 1:1 or 4:1 magnification, when you look for conventional cameras and lenses. The reason is that the magnification/size of the closeup at say 4mm will be different if the camera is set to wide angle than if it is set to telephoto - and usually it will only do macro at one of these extremes (saddly usually wide angle!)

So the close-upness of the camera depends on the focusing distance in macro mode, and how wide the angle is in that mode.

By the way - fabulous close-ups with your old camera, what make and model is it?

If the main point of the image is for the internet - note that a 640x480 image has 0.3 mega-pixels! Once the image has been jpeg'd etc, even less resolution may be present!

I would stick to your old camera for pictures intended for the interent, you only get the benefits of the extra mega-pix if you are printing the results