okay, i have a powermac g4 gigabit ethernet, 400mhz, with 1gb ram. I found a good deal on a quicksilver dual 800mhz with 1.5gb ram. I will be running tiger on the quicksilver, and i also currently run tiger on the giga ethernet powermac. My question is: Will the quicksilver be a NOTICABLE imporvement over the current powermac i have. I want to be able to multi-task and run basic programs like mail, msn, safari, and itunes. Will there be any major difference. The quicksilver also has 2mb of L3 chache, so will that help with youtube playback. Right not all the videos are choppy, and I would like to watch them properly. The quicksilver also has the fx 32mb video card, which i will probably upgrade with the ati 64 or 128mb card. So I want to know if this will be an overall major boost for me. Thanks. Edit: Also this is completely off topic, but i was looking at buying an apple universal dock from ebay for around 15$ w/ free shipping. Its genuine apple, and there are a whole bunch of them. does anyone have experience with buying apple universal docks off ebay? Thanks.