For those of you who wish to taste the fruit before the labor here is a site that actually sells citrus fruit.

http://ripetoyou.com/Main.aspx

Notable varieties to try are:

Seedless Lisbon Lemon
Palestine Sweet Lime
Pampelmousse Jaune -aka Cocktail Grapefruit (very tasty)
Oroblanco
Indio Mandarinquat (although sour )
Moro Blood Orange
Gold Nugget (can't get enough of these)