Hello.
Yes, Taça Iberica will be played next tuesday between Benfica and Interviu Boomerang, Portuguese champion against Spanish champion, two great teams opposing, it will a great match for sure.
What other 3 teams are in Benfica group for the UEFA Cup, in the other group are the two Spanish teams Playas de Castellon and Interviu Boomerang. This group will be played in Interviu´s court in Torrejon (near Madrid).
In Portugal rules are the same as in FIFA competitions, in Spain rules are different and makes Futsal more attractive. Tactics and strategy are very important than in FIFA Futsal, that depends more on individual technic of the players. I think that Spanish league is the most competitive because with these rules differences between teams are less important because all teams have a lot of tactic and strategic solutions not only individual. Also in Spain we got some of the best Futsal world players, Manoel Tobias, Schumacher, Marquinho, Indio, Tatu, Euler (all brazilian) and Joan, Andreu, Daniel, Paulo Roberto, Kike, Luis Amado (all of them in Spanish national team).
Good luck in Taça Iberica.