I found two cool Spy videos yesterday, but don't have the right plugins installed to post them on my blog properly, so you're just going to have to click the links below to watch them:

YouTube - Team Fortress 2 - Don't meet the Spy! (Original English)

That Pineapple is a spy! - TF2 video

I played some TF2 as spy after watching those videos... but I sucked really bad :| I blame it on low fps, and high ping.