Looks like you guys just signed the two time CFL defensive player of the year (two in a row actually, the last two years), Cameron Wake. I don't watch the CFL at all, so I really don't know anything about him other than some numbers.
Seems he's 26 years old. Went to school at Penn State. Played DE in the CFL, but the Dolphins want him to play LB. I've seen various reports of size, from 6-3, 240, to 6-4 260, so I'm not sure of his actual size (the Dolphins website lists 6-3. 240). Won the defensive MVP award in both 2007 and 2008. Had 16 sacks in 2007, and 23 sacks in 2008. Finished his two years in the CFL with 137 tackles, 39 sacks, 8 forced fumbles, 3 fumble recoveries, 5 PD's, and two field goal blocks.
Apparently he received a $1 million dollar signing bonus, with the 4 year deal being worth up to $5 million.