I passed a Terex dealership today and checked out the TX-760 and TX-860. Awesome looking machines! I looked up a few specs, they're heavy, almost 16,000 lbs each, with 80 and 90 hp respectively. They lift a bunch of weight and dig some deep holes. Pretty pricey too, I noticed. Comments and critiques from those of you who've used and/or know of this equipment?