I need an iMac for doing some simple word processing tasks and browsing the Internet etc. I've been offered two models for the kind of price I'm looking to spend, and these are the 20" iMac G4 1.25GHz (USB 2.0) and the original iMac G5 in 17" 1.8GHz form. It needs to be reliable and look good on the desk. Now, I'm stuck on which to go for! I personally prefer the design of the G4 model and the bigger screen would be very much welcome, but the G5 is probably the neater proposition due to having built-in speakers and of course it's a more modern machine. Would the G5 be noticeably better-performing than the G4? I'll be running OS X 10.5 on it, alongside Microsoft Office and Safari. I had a 1.25GHz PowerBook G4 for years and it was always excellent, so perhaps the G5 wouldn't really make that much difference after all? Ahh, I don't know! Any help would be much appreciated.