Should I get 10.2?

I have an iBook 600 that I bought last December and an iMac DV 400 and wondered if I would notice any performance improvement in 10.2. My computers are just G3's with ATI Rage video cards with 8 MB of video RAM so I know that I will not be able to even use the new Quartz Extreme feature, but even without that will I see some improvement with regards to speed and responsiveness? Also does system RAM help a lot with OSX? I have been using it just fine on my machines since last December, I have 256MB on my iBook and it does seem to do better then my older iMac with only 128MB. Would it be worth my money if I am going to keep my old Blueberry DV around for another year to up the RAM to like 512MB and put 10.2 on it. Will I see much of a difference? Has anyone with a G3 processor (other then the current iBook, which is designed for 10.2) that updated to 10.2 seen much of a performance gain? I would like some help here.

Thanks...I will be interested in hearing from more G3 owners as they get it and then I will probably buy it for my machines. Thanks for the feedback...also will more RAM in my iMac DV 400 help a little? How much can you actually put in a Blueberry iMac DV with regards to RAM. If more RAM and 10.2 helps some I will probably save my money and hold on to my old iMac for another year or so. It is okay in 10.1.5 with 128MB of RAM, but I would like it to feel a little more like it used to in OS9. Thanks.