"And we're so close as a unit that every time we get together it's special.
"I love doing this. For me personally, trying to plot how we can overcome someone like (Japan number one Kei) Nishikori is great. Anyone you speak to that has been Davis Cup captain will tell you it's very special and it's nice to be able to continue doing it."
Smith has not yet decided on his singles number two, with Kyle Edmund, who made his debut in the final, and Dan Evans set to fight it out in practice.
Jamie Murray will play his first tie as a men's doubles grand slam champion after winning the Australian Open with Brazilian Bruno Soares.
He will partner either his brother, if Andy wants to play all three days, or Dom Inglot.
Doubles could prove to be the decisive rubber, with the teams evenly matched in other areas.
World number six Nishikori will be the highest-ranked player Murray has played in Davis Cup since Britain returned to the World Group while 82nd-ranked Edmund is five places above Japan number two Taro Daniel.
The challenge for British tennis off the court, meanwhile, is to ensure Davis Cup success provides a tangible boost to the sport.
No sooner had the trophy been won than the headlines were dominated by damning verdicts on tennis' governance from Murray and his team-mates.
"I feel like you waste time because nothing ever gets done," said the world number two.
The Lawn Tennis Association responded by announcing the trophy would be going on a nationwide tour while 10,000 children are being given free lessons and racquets.
Smith is at the heart of the project and is optimistic that, for once, the opportunity will not be wasted.
The Scot said: "We've got local boy Dan Evans going to his club with the trophy next week, which will be great for him.
"We'll take it round the country and show it off, but more importantly because we want kids to see what's possible. Each one of us has a story to tell of how they got into tennis and by taking it around the country to where their journeys started gives us that opportunity.
"From that let's hope a lot of kids get involved in tennis. We've got our legacy project where we're training up 1,000 coaches to deliver workshops to kids, and that's not just a one-off, we'll keep following that up.
"So much noise was made at the time but we're in a good place with it now. Plans are in place, I'm fully engaged with it and the team is. We've not just been listened to, we've been involved."
