Storm trio of Ryan Hoffman, Jeff Lima and Brett Finch will join Wigan from 2011, Hoffman on a one year deal with a second year option, Lima on a three and Finch for 2011 and 2012.
Speaking in a Melbourne Storm Press Release, Hoffman said,
"Melbourne's been my home for the past eight years," .
"It was a very tough decision to go but hopefully, with me taking this opportunity overseas, it will give someone else the chance to have the same great experiences that I have had here.
"I'm proud and honoured to have been able to play for the Storm.
"Likewise I'm excited about playing for one of if not the most famous rugby league clubs in the world and becoming part of that club's already great history.
"Playing overseas is something that I've always wanted to do so when the opportunity to join a club that is on the verge of something special was too good to refuse."
Finch added: "I've loved my time here in Melbourne.
"It's been a difficult year, but if I had to go through it, I'm glad it was with this group.
"This club gave me an opportunity to continue in the NRL after I left Parramatta but playing in England has always been in the back of my mind.
"I've always wanted to play there and I'm extremely glad I'm going to such a strong club with a strong value set and a proud tradition."
Finch will play his 254th NRL game against Penrith at AAMI on Saturday while Hoffman, 26, has played 163 NRL games - all for the Storm.
Lima, 28, has played 93 NRL games, 91 for the Storm.
Lima said: "It was Melbourne that threw a lifeline to me back in 2006 and I won't forget what this club has done for my family in that time.I'll be leaving with a lot of great memories."