HI Remus
I too, like you, do not do any post processing..too lazy haha.
But do not have a comparison of images between zoom and prime. I did notice the primes were definitely sharper.
Also, if size is your thing, then you should not go for Canon. Pentax make the most compact and lightest lenses around. All my Pentax prime lenses make my DSLR look like a prosumer PnS camera!
My camera bag is a tiny Bagman bag the size of a small ladies handbag but I could carry the camera and lens PLUS 2 additional prime lenses. Here is a photo of a Pentax DSLR with the 3 DA Limited prime lenses that I have (21mm, 40mm, 70mm). I own the K200D currently.
Other samples :
To get the most of your zoom lenses, try to stop them down by 1-2 stops from wide open.
BTW, interesting you were actually patient enough to catch it blinking..haha
Cheers