You can get those Tojiro DP's dumb cheap on Amazon as well.
The 240mm is around $85.
If he already has a Global though, get him something unique and something with that wow factor, something aesthetically pleasing as well as functional.
How about something like this?
I've never used this knife, but it gets great reviews and it sure is something to look at. It's on my short list of expensive Gyuto's when I grab one in a few months.
Or how about something like this?
Itto-Ryu Hammered Gyuto 240 White #2
Carbon is obviously tougher to take care of, so maybe something like this?
Sakai Takayuki Damascus Wa-Nakiri 160mm
This one AEB-L steel, it's stainless. I know people seem to be divided on this type of steel though. But the Nakiri would be a cool idea as well and that knife is pretty stunning looks wise and also gets great reviews.