Maximum Team Salary Cap
47 Years.  IR players count against the cap and not the added players. Rules
Restricted Free Agents 2008
Used in free agency only

Gold Salary Page

Roster limits
Franchise Salary Player (do not expire)
  12 years @ cost of 12 FDs
  (min 1 player max 1 player)
5 Year Salary Players @ cost of 5 FDs 
  (min 0 max 1 players) 
4 Year Salary Players @ cost of 4 FDs
 (min 0 max 3 players) 
3 Year Salary Players @ cost of 3 FDs
  (min 0 players)
2 Year Salary Players @ cost of 2 FDs    (min 0 players)
1 Year Salary Players @ cost of 1 FD   (min 7 players)