Try the search results here for A60 image samples
Check out these threads for specific A60 vs. A300
Since the A60 has the same lens as the A70, when you look at the A70 samples, just imagine a 1600x1200 grid instead of a 2048x1536 one. Color quality should be the same, and the A60 should actually have less noise in dark shots.
The A60's 1600x1200 resolution should be fine for onscreen use, as relatively few people use 1600x1200 displays at this time. I usually resize to 800x600 for screen use, and even smaller (400x300) for website use.
Printing is usually done at 240dpi optimum on home inkjets or at 300dpi optimum on the typical Fuji Frontier minilabs at WalMart, K-Mart, etc. This means that 1600x1200 is generally OK for 4x6" prints from either home inkjet or WalMart minilab. The A60 at the highest quality settings will yield a quality image file that can sustain 50-100% upsizing for bigger prints. So with upsizing, you could feasibly go to 8x10" prints that will still look good.
One way to look at 2MP vs. 3MP is to think of how 3MP would translate as zoom factor over 2MP. If 2MP is 1600x1200 and 3MP is 2048x1536, then the zoom factor
of 3MP over 2MP is 2048/1600 = 1.28x
. This is not even 1/2 of the 3x zoom factor of the A60's lens.
As you'll see in the "sidebyside" comparison page, owners have rated the A300, A60, and A70 at 4+ out of 5 stars - you probably wouldn't go wrong with any of the 3.