So far, I've got 40 missiles, 20 pb's, the grapple beam, 2 extra e-tanks, a reserve, high-jump, morph and bombs, ice, charge, and spazer, the varia, and beaten Kraid (got the varia first - even with it, his flying claws HURT)... and found the resupply AFTER I beat him, when I started the fight with like 8 missiles and 150 or so health. -_-
Currently just got into Norfair, and so far, I'm liking it, maybe more than Redesign. :)
Now to go play more. :P
eDIT: Now have 5 etanks, 15 SM's, 110 missiles, probably like 40 pb's, and killed Crocomire. Can't find the spring ball, and you know that blue gate near Crocomire? I opened it from the wrong side, and that's how I found out about the nearby entrance to/from Brinstar. :P
Edit again: Movie of opening the gate from the wrong side:
http://dehacked.2y.net/microstorage.php/info/1981628923/SMD.smv