It just depends. when i play it, i gamble in the first hour way more then i usually would, playing almost anything (suited connectors, any pair, almost any ace, and two faces) if there's enough money in the pot, though lately i've been trying to be a little more conservitive, seeing a lot of flops but waiting for good hands. You'll always get action during the rebuy peroid. I guess my only real advice is, go into it prepaired to rebuy as often as it takes. if you've afraid to go broke before the first hour ends, you're playing way too tight. Also, some people will push all in with literally anything with hopes of doubleing up, 9-3's, J-2, 10-7, weak hands. try to mark those players, knowing you can play lesser hands against them and that they'll be more likely to give you action when you get a good hand.