Yeah, I'm in Halifax and had credentials with the Mooseheads during that time. He had a really strong second half and playoff, so I think he caught a lot of attention playing alongside Voracek.
Was a late riser, but a lot of services did have him as a late first, maybe not as high as Anaheim though:
2007 Mock Draft Comparison
I liked him as a player, got to know his father a bit through being in the press box.
The year after he was drafted he suffered a concussion and that really set him back. Was never really the same player, to be honest.
Macmillan was average-sized, probably would have projected to be more of a two-way guy. Maybe an Anthony Cirelli type guy.