In the continuing curiosity killed the cat series... Once upon a time I used to crunch with some cuda crunchers, which put out enough heat to melt the arctic, and sucked dam generators like Bonneville dry. So what is the state of the cuda cards now? What is the best card they put out now when viewed from the least heat and power used aspect yet is a respectable cruncher when viewed from a nvidia perspective and not ranked against amd/ati??