A GM offered me this deal:

My Vanek+Purcell for Perry+Dupuis

What do you guys think? ill most likely drop Dupuis and grab someone else from FA, but is this a good deal for me for this year and next season? I only get to keep three players this year, so I may not end up keeping Perry depending how he performs for the rest of the season, but its soo tantalizing I want to hit yes now lol. What should I do?

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Yahoo Limited Keeper (Keep 4), 1st Year, Weekly H2H, daily starts, 12 teams
G, A, P, +/-, PPP, PIM, SOG // W, GAA, SV%, SHO,

2C/2LW/2RW/2F/4D/2G/3BENCH/2IR

Likely keepers in BOLD

C: Tavares, Backstrom, Kopitar, Kesler
W: Neal, Benn, Carter, Purcell, Steen,
D: Wideman, Timonen, Souray, Burns, Wisniewsky
G: Lundqvist, Elliott
IR: