Regarding 132 dpi (well, ppi--displays have pixels, not dots), 132 is pretty dense, but 72 ppi displays are not the standard anymore.  In fact, a 15" diagonal display with 1024x768 resolution has 85 ppi, and I think that's about as low density as you'll find.  Netbooks are around 120 ppi or more. A cheap 15" Dell LCD is 110 ppi. I'd guess the average is now closer to 100-110 than 72.  And all the higher density means is that your images will appear physically a bit smaller, but since the detail is exactly the same (a 300x400px image is 300x400 regardless of your display's pixel density), I'm not sure it matters much.