D and Lisp

[Denton Cockburn]

Hey guys,

I'm in University and am about to start my Ph.D.
I know Lisp, and I've been on the D newsgroup for a few months following 
its growth. For ones that know Lisp, what can you say is the experience 
programming in D compared to programming in Lisp?  What are some of the 
frustrations of D in comparison? Some of the joys?  What do you most miss 
from Lisp that you wish D had?

I'm trying to decide which to use for my thesis work.
Should I delve fully into D, or run with Lisp?
What would you use to convince a Lisper to try D?

Hope that wasn't too many questions.