So I recently got a G5 (dual 2.0ghz powerpc processors) and it's awesome! I never owned a Mac before and I have to say I'm loving every bit of it. The machine runs great and I haven't run into any problems at all. I just recently installed OS X 10.5.4 Leopard too. But I'm doubting how long I'd be able to actually use this machine. It's already probably about 4 years old from what research I've done and since Apple has switched over to Intel processors I'm concerned about compatibility down the line (Spore already doesn't run on PowerPC's ). So is there a way to keep this machine from becoming outdated and left in the dust?