I scrapped on a netbook for about a year with CS2 while I was saving up for a better computer. It wasn't bad at all at the beginning and I was pretty impressed, but towards the end it would take like 4 minutes to save a layout with quite a few layers. I'd think though that if you are used to speed and have a fast computer (I wasn't really able to compare at the time) - it will probably be tough for you. But sometimes slow scrapping is better than not at all.
