Not sure how he is, but I liked having a Cozy Carrier (sp) that was a non flamboyant color. We had the Maya Wrap and I just didn't feel right wearing it. It never felt right in both comfort and just overall. We had a Snugli (junk!). We got a Blue Cozy Carrier about 6 months later and I still wear our 1 year old in it on a regular basis. My wife has one that is black with flowered designs on the front and I don't like wearing that one.
I would have worn our daughter more in a sling had I had a proper one that worked well. The Maya Wrap seemed mostly designed for breastfeeding a newborn. (I know it has ways to carry older ones and in different positions, but again it just didn't feel right for me) The Cozy Carrier can be that as well, but it seemed more suited for male use as well. (Just personal opinion)
You asked specifically for newborn specific gifts for him. A "guY" diaper bag? I refused to carry one of the giant pink bags with frills hanging off of it. I banned a Jansport backpack as well because it has 400 pockets and I could never find what I was looking for.
I'd go the sling route if he's in to that sort of thing. I wasn't really in to it, but carrying her in a sling is no problem when you have the right tool.