Equity/Counting Outs in LO8.

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I'm a relative novice to the game, but so far, so good. I've read a lot of the few online articles and I've been lurking here for a while. Unlike in hold 'em, however, I find counting outs to be quite difficult since there's no standard guide for such, ie, it's mostly situational. I found myself jamming a lot of pots when I have the nut flush draw against 3 or more players, and I was wondering if it's a bad play. Of course, having a draw to the nut low certainly helps, but how about in these scenarios *without* a low possibility?

1. None to a low, no paired board cards
2. One to a low, no pair
3. Two to a low, no pair

I was just wondering how you figure out your outs and equity in these situations. Of course, with a pair on the board, I could be drawing dead, and even if the board isn't paired, I can be up against a set if I'm getting a lot of action. This isn't something I'm going to learn in one sitting of course, but some general guides or tools I can use to practice this would be great.

Thanks,
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