Thanks for the offer. And sorry, but the two Lv. 100 Pokemon you saw are actually two members of my in-game team. The Regigigas is tentatively being traded to someone else at the moment, but if that falls through for some reason, I will let you know.
Masuda Method. Its this breeding/shiny method involving a foreign Ditto. I guess if you breed Pokemon with a foreign Ditto your chances of getting a shiny Pokemon go from 1/8192 to 1/1366 in Pokemon Black or White. It can work for Diamond, Pearl, Platinum, HeartGold, and SoulSilver as well, but the chances go from 1/8192 to 1/2048, a little less likely than in White in Black, but still a lot better than the 1/8192.