Question on Raising in HE NL from a Tourney Newbie

[brianmarc]

I'm an experienced HE cash player at the 20/40 and 30/60 level and have started playing single-table tourneys for some variety. My problem is, what are the kinds of considerations on the level to bet when you are raising? I can figure out when I need to raise-e.g., what hands are worth it, whether I'm protecting my hand, getting more money in the pot, semi-bluffing or on an outright steal. Most of the players in my games either use the auto-raise amount-i.e., doubling the bet, or go all-in. There's a big gap between those two, and I have not been able to find anything online or in my extensive poker library that discusses this issue. Can anyone point me in the right direction?