All-new geek quotes, modified to celebrate the new forum - (Jan/26/2009 )
Katherine Parker: Dress shabbily, they notice the dress. Dress impeccably, they notice the woman - Coco Chanel!
Working Girl
a dilapidated old bike, perfect...at least noone would mistake you for an annoying yuppie.....btw, do you leave a trail of bicycle parts? 
....
Alan Frog: For a fashion victim.
The Lost Boys
those are at least not stolen in the city 
and now, a classic here:
The Bookworm: You, sir, are an ignoramus.
Willo The Wisp
well, it can die on you anytime esp on the way to your lab where thousands of bugs are waiting anxiously for your much needed and appreciated appearance..so you better switch to the annoying but reliable BMW...
Leonard: Our babies will be smart AND beautiful.
Sheldon: Not to mention imaginary.
The Big Bang Theory
anyway then I get the next bike...you'll never get my in one of those cars
Shannon: Tom, a girl like me has big dreams. I shouldn't be dating you. I should be dating your boss.
Married With Children
but I like to be in one of those cars, stingy sweetie 
...
Meryl Stryfe: That droopy-eyed, weak-looking, bristle-headed, promiscuous-looking donut freak of a man?
Trigun
as long it's just a nasty dream... you're more the Saab or Volvo type
Tom Paris: First of all he's a megalomaniac, so it's a good idea to appeal to his ego.
Captain Kathryn Janeway: Right.
Tom Paris: And, um... use grandiose language. He likes to be called 'sire', and it helps to say things like: 'The clever fiendishness of your evil plan is brilliant!'
Star Trek: Bride of Chaotica
the dependable, indestructible SAAB or Volvo type..oh yeah, in your nasty dream...
Ryan Atwood: Okay, now you're talking about yourself in, like, the 4th person.
The O.C.
as long you're not the Ford Pinto type it should be okay
Jango Fett: I am the best. Always was.
Star Wars: Bounty Hunter
oh but I'm not a Ford Model....
Londo Mollari:
Babylon 5
this car type, no model can help, even if she'd lounging nude on the engine hood...the Ford Pinto is just to ugly