I've never been a fan of HTC's hardware. It always seems cheaply built and plastic like.
I've had Samsung PDA phones for the last 4 years. The i500, i700, and i730 (my current phone). They've all felt sturdy and well contrsturcted. The Samsung i760 (
http://www.phonescoop.com/phones/phone.php?p=1108) should be coming out Friday, and I will be buying that. It's not the prettiest thing at first glance, but it grows on you...