301. Revenge Is Best Served Cold

(Reinacting a street race)
Nick Stokes: Now remember, hit the nitrious and hang on.
Catherine Willows: You just try to keep up.
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Gil Grissom: Essentially it was death by chocolate.

302. The Accused Is Entitled

Grissom(to Sara): Whatever happens in court, it's not because you're seeing this guy (Hank Peddigrew). You deserve to have a life.
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Grissom: You look nice.
Sara: Thanks, wish me luck.
Grissom: Whatever happens today it's not because you're dating this guy. You deserve to have a life.

303. Let the Seller Beware

Dr. Robbins: I'll know more later.
Grissom: You always tell me that.
Dr. Robbins: Yes, I do.

304. A Little Murder

(After she was attacked at a crime scene, she fell into the victim's blood)
Catherine (To Warrick): Don't touch me, I'm evidence.
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Grissom: I think we look for the differences in each other to prove that were not alone.

305. Abra Cadaver

(After Greg takes his time presenting the results to Sara)
Sara: I'm very busy, Greg.

306. The Execution of Catherine Willows

Nick: People are pigs.
Grissom: Don't insult the pigs, Nick. They're actually very clean.
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Greg: Hey, I hear you're cheating on me with an out-of-state DNA analyst.
Catherine: Apples and oranges, Greg. Fifteen-year-old hair samples no roots, room-temperature storage.
Greg: Room temp?
Catherine: Yeah, that's how we stored hair evidence back then. Microscopy was king.
Greg: Really? I thought Elvis was king.
Catherine: And you are how old?
Greg: Age is irrelevant in our relationship.
Catherine: Maybe so, but face it, Greg you just don't have the equipment.

307. Fight Night

Nick: Yeah, but it's like Night of the Pifflings out there and I'm on a smash and grab.
Grissom: Pifflings?
Nick: Puffin offspring. First time out of the nest every year they crash land in this town near Iceland because they are attracted to the lights of human civilization. It's the same way people flock to Vegas for a fight.
(Pause, then Grissom's face lights up)
Grissom: Animal Planet.
Nick: How come when you talk about bugs everyone says you're a genius but when I talk about birds everyone says I watch too much television?
Grissom: I don't know.
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Grissom: Welcome to fight night.
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Dr. Robbins: You say tomato...I say cause of death.

308. Snuff

Nick: You ever ride a horse, Grissom?
Grissom: Nope, just rollercoasters.
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(Looking through bins of snuff films)
Catherine: Bins of sin.
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(After Warrick threw a phonebook)
Sara: You might want to apologize to the phonebook. (Edit)
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(After Warrick rants about why he threw the phonebook)
Sara: I'm fine.
Warrick: I'm sorry. Are you ok?
Sara: Yeah you missed me by a mile.