I'm wondering how many people are going with your line of thinking because of the no flex.
Normally I'd say there's good value at qb in 3-5 but in your case I'd be looking to pull the trigger in the second. You still might get a nice find in the third due to people taking the top receivers and the big 3 t/e in the second.
Take this with a grain of salt, as it's only my second year playing.
12 team 1PPR: qb, 2wr, 2rb, te, w/r/t, k, d
WR: C.Johnson, M.Austin, T.Y.Hilton, K.Thompkins, P.Harvin
RB: S.Jackson, R.Bush, D.Sproles, A.Bradshaw, B.Tate, Michael Bush