I bought a 20", 2gh Intel iMac off Ebay... that has been running CS2 for the last year. There seemed to be a lot of "Hurry up and wait." with CS2 ..that is virtually gone with CS3. There's also almost never any 'clocks' appearing when I hit a filter ..that's almost scary because I'm afraid it's not working long enough to get the job done. I'm only a 10%'er (only ever use about 10% of Pshp) but I'm really pleased with the performance of CS3 over the last few days after the intall.
My only bitch: they have this neat feature where you can use the plugins from CS2 ...but the G.D. thing will not accept my ser. no. from CS2, so it's buggered.
Anyway, thought I'd share a thought. Cheers all.
Jim
Salisbury MD