I'm a fan of Aguila's .22 ammo. I even like the smell! Kinda fruity. I usually get it from a vendor at a gunshow, but have found it online:
Gold City Gun And Cartridge Company has the Aguila ammo.
Search on: www.22ammo.com
from their online listing:
COMING IN FALL 2002
11513 Goliath (Heavy weight 22 Mag) (no velocity given)
11514 .223 Rimfire
11515 .17 Rimfire w/firearms avialable