I hadn't come across this information before. Are there both liquid and air cooled 2.7s? I had been under the impression that the top end models were always liquid cooled.

Is there a visual indicator or a model number that will indicate which is which? The machine had a label (applied by the retailer) implying that it was a 2.7, but I didn't do a closer inspection of the model plate either on the back or inside. I could probably do this, I'll likely be back by that shop in the next week.

I'll certainly go take a look at some point and I'll take a look for any leaking or if maybe it has been mislabeled and is actually a 2.0GHz or maybe one of the PCIe models. (Which I would consider a no brainer, purely for the fact that the 2.0GHz and 2.3GHz PCIe G5 are considered physically reliable, as far as I know.)

Thank you for the information, keep it coming! I'm probably not going to use it online much, (although I'd be lying if I said I wouldn't try it out) but information about that is probably less relevant than information about physical reliability, upgraded configurations, etc.)