[Albert Moulton]

You should have at least 10 times your buy-in, assuming that you will play tight, aggressive poker instead of trying to out-lag the lags, or bluff out the calling stations, both of which you will find in greater quantities at a live game than on-line. For LAG play you will need much more to cover the swings.

If you plan to buy-in for the full $300 every time, then try to keep at least $3000 at the casino in a player's account. That way you don't need to lug large sums of money to and from your car every night you play cards.

If a player's account is unavailable, and/or if you don't quite have a full 10 buy-ins for a bankroll, another option would be to take 3 buy-ins with you every session (~$900). Then, if you bust out twice, leave with at least $300. I suppose this is something of an artificial loss limit, but before I opened my player's account and built up a proper bankroll, I would use this technique. I think this approach helps to exercise some self-discipline when you lose because when you bust out twice and still leave with $300 in your pocket, you are leaving because you "want to" rather than you "have to." I make a point of never, ever going completely "broke" in a single session. I always leave with money in my pocket (or account).

Obviously a bigger bankroll up to $20 buy-ins would be nice.

As to your question, "is a ~$2500 BR ok to start with?" I'd say that it's a little shorter than I'd recommend, but should be fine as long as you play TAG.