Which flash is better for a photography student?

I know that the SB800 vs. SB600 topic has been discussed to death but...
My girlfriend needs a flash for her photography studies at uni.
We were originally considering the SB600 as recommended by a nikon rep.
Then I read on this forum that the more fully featured SB800 is only slightly more and comes with a few extra goodies.
I kind of answerwed my question.
Anyway would a SB600 be adequate or should we just take the plunge and get the SB800.
My girlfriend needs a flash for her photography studies at uni.
We were originally considering the SB600 as recommended by a nikon rep.
Then I read on this forum that the more fully featured SB800 is only slightly more and comes with a few extra goodies.
I kind of answerwed my question.
Anyway would a SB600 be adequate or should we just take the plunge and get the SB800.