I'm using Xubuntu 12.04 with 1GB of RAM
I just had to post my recent experience. I am a relatively new Linux user. Yesterday, my brother in law called me with an urgent request to scan some documents. I recently hooked up my scanner to my old Dell 3000. I used to have it connected to my trusty (until recently) iMac. When I opened up Simple scan (which I never used before), I could not believe how easy it was to scan documents compared to what I was using on my iMac.
Here I was with an old computer which I admit is slow but hey, it works fine for me. I was so happy to pull this off for my brother in law.