I may be in the minority, but as far as I am concerned, unless the projections are in some type of general/relative tier, they don't make much sense. We all know you don't sit your studs. But what is their variance anyway, sans injury? Do we really know for sure if Pujols will hit 40 home runs or 43? You don't. but for the middle-tier and lower guys, projections without some general sense of relative value are pointless. You are going to sit certain players based on the opposing pitcher, ot a hot/cold streak. I always wonder how many stats you shave off because you are playing the percentages, etc. I tend to do my evaluations on tiers, and bunches of five. Ok, is this guy a 25 homer caliber player, or is he thirty? (the 25 guy might have a career year and hit 30, the thirty guy might hit 35 or more, etc.). Is he the kind o gy who is fast, but not THAT fast, and can steal 30, or is he underutilized and could really steal 40 with regular abs or a nice manager. I think those things are more important really, because everyone is going to have their staff aces and stud hitters, but for everyone else on their roster ... there are going to be decisions good/bad, shenanigans, and trades, and the normal ebb and flow of stats ... all of which effect your end result anyway. analyzing over 5-6 home runs/steals and 10-15 rbi/runs seems a little pointless to me, because your realized stats will be so much different anyway.
I'd say that this forum is the best source of information. That being said, not everything you read here is gold, but in aggregate, it's better than anything you will pay for. and its DEFINITELY better than anything you will read on ESPN, CNNSI, CBSSPORTSLINE or rotoworld.
Personally, I try to read it all, and get a general sentiment of who is the "sleeper du jour", who is overvalued in perception versus undervalued, and get a sense of the general area of where people should be drafted. League economics and attitudes are an undervalued (I'd say the most critical) aspect of fantasy sports.