Bell Canada is spending C$26-million to acquire the residential assets of Montreal-based Cable VDN. In the scheme of things, it is not a major deal but if you scratch behind the surface, there is more to it than meet's the eye. How come? Cable VDN uses a fiber-optic network in Montreal to deliver broadband and digital TV service to apartment buildings and condos - a.k.a. multi-dwelling units, or MDUs. The deal will let Bell aggressively pursue 400,000 MDUs - a market where it has taken a back seat to cable companies. This should give Bell a way to fire back at Videotron, which has taken more than 40,000 local telephone customers from Bell since February. Bell can now go after Videtron's cable customers who live in apartment buildings and condos with its own digital TV service. Bell said Cable VDN has about 13,000 TV and 3,000 high-speed customers in Montreal. Another benefit is Bell can now spend more resources and time getting its VDSL technology into more MDUs in Toronto.