[punter11235]

Hello,

First, be sure you can actually beat that game. If you played some poker before and you beat game similair to this you can give it a shot. But if you didnt dont do it, any poker game looks very soft for beginners ("wow, this Mahatma guy went all in with 3rd pair, this is nuts...").
Second, dont buyin for 25$, start with 12$ or sth similair, when you build to 150$ go to 15$ etc. Leave the table when you double up. Its not true that you have any kind of disadvantage when buy in short. Actually you have nice advantage vs your opposition BUT you play smaller stakes than they (which is good with 100$ bankroll).

Best wishes !