re: Poker & CAP No Limit and Pot Limit
There's a game out there to suit just about every taste. Preferring a game with a cap isn't the part that makes a player a nit. You (or I) can be just as 'nitty' in Fixed Limit as some are at NL and everything inbetween.
Working on becoming a TAG doesn't have anything to do with any 'limit', imo. At any limit (or lack of a limit) a player can play tight. The AG is then only a matter of the EXTENT to which you can become aggressive.
If you don't enjoy 'betting the farm' - don't do it. Cap and limit games provide just as much excitement as 'I' care to play for and that's what is important to me. Playing in an arena you aren't mentally up for can hurt your game.
Extra Question #1. FR, #2. Doesn't matter. TAG is a style of play, not an amount of money.