Dilemma. Get the 2.3ghz dual G5 for $2499 250gb HD 16x DL Drive 512mb ram AIR COOLED or Get the 2.5ghz dual G5 for $2499 160gb HD 8x DVD-R 512mb ram LIQUID COOLED I went with the dual 2.5ghz G5 and I like it but did I make a mistake? Are there less problems with the 2.3ghz? Will it last longer? Is it quieter? Is it just as fast? Answers, benchmarks anyone?