Would a PowerMac G5 Dual 2GHz for $130 be a good deal? This would be great for my mom I think. She has my old AMD Athlon XP 2500+ PC from 2004. Would this be worth the upgrade? To do any kind of upgrade on her computer, I would basically have to rebuild this whole thing, aside from the case. I'd also keep this once she upgrades for myself, just to have since it's a bit of history.