Hey haven't posted a hardware question in a while but searching the other threads has only half answered my question. Basically, i have a 667 tibook DVI with 512 RAM(two slots filled), 30 GB stock hard drive and Radeon 7500 32MB running 10.3.8. With the release of Tiger i have seriously being thinking of upgrading and am just wondering if anyone out there with a similar spec computer can vouch for not only the overall speed performance but also the use of dashboard and general quartz performance,etc. Now comes my second question. No one has to tell me twice that more RAM is always a good thing but my tibooks got both slots filled right now. If i upgrade to tiger, is it worth it to rip out both chips and put in 1GB? Is it worth the price for the possible gain in performance or should i just upgrade to tiger and stick with 512?