Creeping Death said:
Half-Giants are stated in the Expanded Psionics Handbook. Good race, playing one right now. Love it.
The XPH half-giants are not anywhere near the half-giants of the Dark Sun setting, though. For one thing, DS half-giants were firmly in the Large size category (IIRC, something like 10' tall or more) rather than being Medium with Powerful Build. For another, DS halfgiants weren't particularly psionic - well, Athas is a high-psi setting, so all PCs and many NPCs had wild talents, but nothing like a racial psi-like ability.
Now, looking at things and trying to detach myself from my love of the Dark Sun setting, I can see that the XPH half-giants are quite possibly more suited for being PCs, especially with 3e's greater emphasis on balance. Still, they're not really anywhere near the engines of destruction 2e half-giants were.
Oh, and another thing: given the way the 2e Strength chart was set up, the +4 bonus half-giants gained to Strength was WAY bigger than it looks to someone familiar with only 3e. See, in 2e they had this stupid thing called Exceptional Strength, where a fighter-type character with Str 18 got to roll an additional d100, so he might have Str "18/73". These percentiles created an additional five steps "within" Str 18 (01-50, 51-75, 76-90, 91-99, and 00). This in turn lead to Str 19+ being WAY better than a plain 18 (IIRC, a plain 18 was +1 to hit and +2 damage, with 19 being +3/+7). Combine this with halfgiants having a minimum Str, pre-modification, of 17 (for a total minimum of 21), and you can see where they became total terrors.