According to capgeek.com, the Penguins have plenty of cap space to make a sizeable offer to Doan. Even with Steve MacIntyre listed on the NHL roster the Pens still have just under $10 million in free space.
Money isn't the issue, however, there is one major problem that could prevent them from signing that big name winger to play with Sidney Crosby.
By my count the Penguins are nipping at the heels of the 50-man NHL contract limit. If you include the three restricted free agents (RFA's) yet to re-sign with the team, defensemen Robert Bortuzzo and Alex Grant and forward Eric Tangradi, and discard defenseman Scott Harrington's contract since he will be heading back to junior hockey in Canada, the Pens have 49 guys under NHL contract for the 2012-13 season. The RFA's re-signing appears to be a formality type thing. The deadline has passed for RFA's to sign but GM Ray Shero is on vacation so no official news has been released yet.