Originally Posted by
Thurbane
Just as an FYI, a character could start out as an NG Barbarian to pick up Lion Totem (pounce). If, at some point prior to attaining level 8, he performs consistently lawful actions, there's no real reason he couldn't change to LG over the course of 6 or so levels. You could simply say that once the Barbarian gets a taste of life in civilized lands, his attitude to authority and laws starts to change.
He would retain pounce, even once LG.
...you traded away fast movement for pounce. You lose the ability to rage, but if you only take one level of Barbarian to get pounce, then move on to another full BAB class (possibly even Barb 1/Fighter 6 for more feats), all you are losing is rage 1/day, and the aiblity to take any more Barb levels.