I just thought I’d quickly remind of you of my half-elf house rule, which I’ve borrowed from Unearthed Arcana. Basically, I find half-elves to be a little underpowered – perhaps deliberately so, since they are among the rarest of the core races. They’re basically humans, but get a few skill bonuses instead of a bonus skill point per level, and low-light vision with sleep immunity and +2 to saves against one school of magic. If you ask me, that’s not an optimal trade when you consider what that feat can buy.
I balance this weakness by giving the half-elf the extra skill point, as per the human – as it’s phrased, “4 extra skill points at 1st level and 1 extra skill point at each additional level.” The human is still a viable race in comparison because it’s the only core race to get a bonus feat at first level.
I consider this balance especially important in Eberron, where the half-elves are one of the more common races in the setting, with most being the descendents of other half-elves for several generations–such half-elves are known as khoravar, according to one of Keith Baker’s Dragonshards.