The trade suggested would be : Ted Ginn + 4th round pick for the Niners' second round choice.
Dolphins : They would jump on a second round for Ginn even loosing a fourth round pick, that pick would replace the one they loose in the Marshall's trade.
49ers : A second round is a high price for Ginn but he's still young and he surely can return kick better than any of Niners' players and behind Crabtree and Morgan he could help the receiving unit; Loosing a second round pick is less important a year you have two first round picks and adding a fourth would allow the team to solidify the O-Line with a guy like Mitch Petrus, Jason Fox or JD Walton.
With Ginn, no more Spiller discussions, just take a tackle and a defensive back in the first round.
This is my first article so maybe that idea is dumb ? Feel free to comment, you welcome.