The SD300 is VERY fast. Both in startup time and in focusing time, etc. the review on dpreview.com will give all those specs.

I HAD an SD300 until I read about the SD400 and SD500 which are coming out this month. I returned it to Dell within the 21 day return policy...

To me, the new features that is present in these 2 cameras are worth the wait. USB 2.0, better LCD screen, ability to zoom (digitally) when in movie mode, 5 megapixels in the SD400, some enhanced coloration toys, customized settings for remote picture mode, and a few others. Oh yeah, for the same retail price - although I doubt the street price for the SD400 will be as low as the SD300...

I loved the pictures that the SD300 took, although it is generally thought to have "soft edges"...

It's a great point and click kinda camera, and the form factor is amazing.

The SD500 is bigger, but I gotta see by how much before I decide between the SD400 and SD500...

- Jon