I didn't like gnomes for a while, back in 1e and 2e. But back then I didn't like halflings either. Now I like them both.
For some really cool insight on gnomes, check out the Hero Builder's Guidebook. It'll tell ya how gnomes with innate magical talent are secretly recruited by a society of black-clad gnomes sworn to protect the gnome's world from the fiendish terrors of other planes. Or how a gnome that hears the higher calling and becomes a paladin starts hearing other gnomes call him "sheriff" almost instantly, making every sheriff in a gnome settlement a paladin. Or how gnomes are so competent at looking for nature in everything that gnomes are the only druids capable of living in a city, tending to flower gardens and the urban ecossystem without loosing their minds. Or how gnome monks blend illusion and skill to become the ultimate infiltrators.
For a broader look at gnomes, check out my
Oddball gallery .
The only gnome in my game so far was Erky Timbers, from Sunless Citadel. And he was a p***-off gnome, after being held captive for a year. At one time the party got a goblin prisoner to interrogate. After the interrogation was over, Erky turns to the PCs:
"Need to know anything else?"
"Nope."
"Great.", and then Erky smashes the tied-up goblin's skull!
His first thought after being released, was to go to the surface and sleep under the stars for the first time after a year.
And if you want a simple change that adds tons of flavor, just change the gnome's favored class from illusionist to druid. Presto! You have a race where nearly everyone has a level of druid and has taken an oath not to use metal armor and to forgo most weapons. Suddenly, gnomes make the best leather/hide armor, gnomes fill most higher ranks in druidical society, nearly every gnome walks about with at least one animal companion and so forth. For those who like fey-type gnomes, this does it in spades.