Well, I'm very happy to say I now have my Desire HD in my grubby little paws. One incredible phone. Thanks enigma243 for the introduction. Never even considered an HTC phone, but glad I now have one. As for the battery, I'm already on my first charge. So we'll see about that. But I hope to make the best of it.
As for the battery life on DHD, I can confirm that my battery life has improved drastically after a week of use. Grab yourself an App called Battery left. It let's you know how long the battery has left, what time its going to die etc. I love my DHD. Best phone I've ever had in my opinion and I've owned an iphone and Blackberry.