Welcome man. Here is a thread talking about curved hilt sabers, like the Dooku hilt you're describing:
http://www.saberforum.com/index.php?topic=2966.msg36957#msg36957To summarize it, Ultrasabers used to make a curved hilt when they were doing PVC sabers. As of right now, there is no curved saber produced by them (and very few produced by other places as well). However, Ultra has dropped hints that a curved saber is something he may be working on - considering its demand here on the forums, it's a likely bet you'll see one in the near future.
I'm with you man, if they come out with one I'll be first in line to grab it.