Pretty much anything by Electric Six or Clutch. Honorable mentions to Soul Coughing and VNV Nation.
Karma chameleon, you come and go ⋅ Karma police, arrest this ho. ⋅ Karma's a bitch, it gets a little jumpy when you come near.
-- Electric Six, (It Gets a Little) Jumpy
Like Harry Truman dropping bombs out of the air ⋅ Like any self-respecting multi-billionaire ⋅ This is who you are, five dancing teenage boys ⋅ Who sing their way into our hearts ⋅ Backstreet's back, alright
-- Electric Six, Jimmy Carter
Next thing that I did was tap out Morse code ⋅ With a wooden nickel on the receiver of the phone ⋅ Before I could complete it, I was quickly overtaken ⋅ By the angry spirits of Ronald and Nancy Reagan
-- Clutch, X-Ray Visions
BetterTouchTool (which isn't free but is worth every penny) lets you do everything rectangle does. Also lets you configure your mouse buttons to do whatever you want. Also infinite custom hot keys and shortcuts.
Also Raycast as a replacement for Spotlight.