Hello everyone! I have a question or two about recording on my Imac (2nd generation PowerPC, I think. 1.8 GHZ). I've been linked here before so you guys seem to know what you're talking about. I bought a (yes, used) Imac G5 for recording my music. I have way more experience with PCs, but I'd heard Macs were definitely the way to go since their hardware is better, etc. I'm quite impressed with it so far, PCs don't hold a candle to this thing. And this is an old one. Here's the problem- I'm just using Garage Band at the moment but the thing lags like crazy after a few tracks. When I open a new track, it doesn't even show up until I click the show/hide track mixer button, for some reason. I was told that upgrading my RAM would probably help with that. I thought I had 4 Gigs max, but after browsing Apple's site it looks like I've only got 2 Gigs max. There's already a gig and a half in there. I know I've heard to update RAM sticks in pairs, which whoever I bought this from obviously didn't do, but would that half gig make much of a difference? I mean, would I experience less lagging problems if I bought two 1 Gig Ram cards (http://www.amazon.com/Crucial-PC3200-UNBUFFERED-NON-ECC-184-PIN/dp/B0009PAYY8 If those are the right ones) or would it only make a slight difference? Or does anyone else have any suggestions on how to make it lag less? Thanks in advance!