decent mid range vodka (smirnoff is a-ok)
Juice of one fresh squeezed lime
celery seed
dash of tabasco
pinch of salt
dash of white pepper
Pinch of horseradish
Top with either fresh tomato juice (puree the tomatoes in a blender, then strain, then sieve through cheesecloth...its almost clear but tastes very tomato-ey) or v8
Add one pickled spicy green bean as a swizzle stick. You'll find these in the pickle related section of many supermarkets. Trust me.
You have to let it stand for a little while for the celery seed to kick in, but it really makes the drink, then pour over ice.
Doing margaritas lately though. Fill a glass with ice. Fill one quarter of the glass with fresh squeezed lime juice, bring it up to halfway with tequila, almost fill with fresh valencia orange juice, then top with a shot of grand marnier.
Good deal on tequila: "El Jimidor Reposado" at Sams Club, bottled by Herradura, who IMO makes one of the better tequilas...$29 for a 1.75L bottle.