There's already Viking free agent news (at Access Vikings, and then at PFT).
According to said sites, WR Bernard Berrian and DE Justin Smith already have Twin Cities visits in the works (Kevin Seifert says Zygi Wilf's private plane is going to get Berrian). The Vikes could fill two of their biggest needs with two of the best available FAs at those positions.
Access Vikings mentions some QBs that the Vikes might, maybe, possible have interest in: J.P. Losman and Josh McCown. I've always had a weird infatuation with McCown, though reason suggests I shouldn't. Losman really intrigues me: he'll be 27 next season, he's got 31 career starts, and in the past two seasons he completed 62.7% of his passes. He's young enough to improve and be good, but he's got enough experience to produce immediately. I'd like to see Losman in a Viking uniform next year.
Tomorrow we'll all be refreshing Access Vikings and PFT regularly.