The easy answer is AJ, Calvin and DMac. But taking a deeper look at this you have to think who can you get in the draft not only at 2 but also in round 2 since it is so much later. You have WR, WR, and RB covered and at 2 you take take a good RB (Do you have a reasonable idea at who will be there at 2?).
But since this is a keep forever league you may want to rethink Cam, and I agree you gotta keep Calvin. Then you got QB and WR so that almost forces you to keep a RB and I take McFadden over Bush every day of the week. Then you still draft that RB @ 2 and hope to find gold at WR deep in the draft.
If it was me I think I would go with option 1 and get a QB later. Then you know you have your 4 studs before the second round even starts.
QB: BREES, Cutler
RB: TURNER, MCGAHEE, R. JENNINGS, Leshoure, D. Williams, Hillman, Hunter, Dwyer
WR: CRUZ, GARCON, Amendola, Edwards, D. Baldwin