Pension Plan Puppets, a Toronto Maple Leafs community

The story out of Toronto this morning: Maple Leafs GM Brian Burke is in hot pursuit of Swedish Elite League goaltender Jonas "The Monster" Gustavsson, and is also in discussions with Gustavsson's teammate, 29-year-old Farjestad captain Rickard Wallin. Could Wallin or another international center become a target for GMGM and Caps management? A senior VP for the Leafs described Wallin to the Sun as a "good two-way player who has played over here before" (with the Minnesota Wild). Wallin led Farjestad in scoring each of the past two seasons, and was of course a teammate to the Caps' latest Swedish center project, Marcus Johansson. What are the drawbacks to signing international free agents? Have the Caps gone this route before? I'd read that Gustavsson is still subject to the entry-level contract requirements, but I'll defer to someone else on whether Wallin's two previous NHL seasons affect his contract status. [Edit: Wallin's entry-level eligibility has expired, per Sombrero Guy below.] Are there other international C's floating around that would be worth the Caps' time, money and salary cap space?