Okay, this is my first post here on MacRumors and I'm pretty excited because I just got a PPC G4 and it's my first Mac! About This Mac... CPU: Dual 1.42 Ghz PowerPC G4 - 2 MB L3 cache per processor RAM: 1 GB DDR SDRAM GPU: ATI Radeon 9000 Pro OSX: 10.5.8 Running OSX ML Theme So, this baby runs pretty well already, but there are a few stutters here and there and it seems like Office '08 takes a toll on the hardware. I want to upgrade/learn about this product as I do so. Considerations: - An Airport Card (I am currently tethering to my iPhone 4s with MiWi) - Upgrade to 2 GB of RAM (low density ) - A USB 2.0 card. (Does this computer have the power to utilize that?) So, if anyone happens to read this and is feeling generous, perhaps they could suggest some ways to do this, or specific products that work really well with these machines, or even some upgrades that I'm not even aware of. Any and all help is appreciated and I thank you for looking.