Just a few weeks ago, I acquired a Late 2004 1.8 (single) G5. I am pretty satisfied, but I've found that I am pretty CPU limited on some tasks/games. So I figure I'll sell off the G5 I've got and get a bit more powerful one. I've been doing some research and I'm trying to find out which model is the most powerful PMG5 that IS NOT water-cooled. After spending the last few days looking into all of the G5's online, I've seen too many horror stories about the liquid cooled models, so I don't want to fool with that stuff. In short, is the Dual Core 2.3GHz PowerMac G5 the most powerful G5 tower that uses standard cooling? If so, that's the next Mac I'll be purchasing, after selling my current 1.8GHz (single) G5.