Your thought process is exactly the one I'd go through.

Quick bet-size primer. Sorry if it's too basic. If it's a little hard to read, just ask me to explain it again:

The standard betting/raising amount in NL is between 1/2 pot and pot. When raising, remember when calculating the size of the pot to take into account both your opponents bet (some web sites do this part for you) AND YOUR CALL. So, if there's t100 in the pot, and your opponent bets t80, a pot-sized raise would t100 + t80 + t80 = t260, so you should raise TO t340, and a half pot sized raise would be 1/2 * (t100 + t80 + t80) = t130, so you should raise to t210.

Choosing the actual amount to raise is dependent on many things. At the 11s, your value bets should tend towards the higher range as your opponents tend to be loose/passive. Also, since your opponents aren't paying much attention to bet size relative to the pot, you can frequently make cheap bluffs (1/3 pot or so). Spotting players who will respond well to this is very +EV, IMHO.

When a bet/raise would commit more than 1/3 of your stack, you usually want to go all in instead. This is not a steadfast rule, and you can definitely modify for specific opponents and situations. Preflop, however, you really want to stick to this rule, especially in STTs where FE is so important and people are scared of pushes.

Hope this helps. I realize that it's worded poorly, so ask questions about anything that confuses you.