For those of us new to SC2 but used to BW, there are some cool (and perhaps useful) things that you can take advantage of in the new interface. Most of them come from things I've read in the SC2 forum. This thread WILL NOT talk about any unit-specific strategies as balance is still subject to change, etc.

I'll keep the post updated as people share what they've discovered. Yes it's being updated, except only with relevant and useful info.

General

• Using 'Tab' when you have multiple unit types selected will cycle between them. 'Shift'+'Tab' will cycle backwards.
  
• Hitting 'F1' selects an idle worker. 'Ctrl'+'F1' selects all idle workers.
  
• You can keep HP bars turned on all the time from the options menu.
  
• Turning on building grids in the options menu makes walling a lot easier.
  
• 'Shift' queuing commands now work with stuff like siege and blink.
  
• It's also possible to 'Shift' queue waypoints now.
  
• If you have multiple workers selected, you can issue multiple build commands and they'll each build one; extra workers will continue whatever they were doing.
  
• Hitting 'Backspace' jumps between your town halls.
  
• 'Alt'+'F' changes team colors to you = green, allies = yellow, and opponents = red.
  
• 'Ctrl'+'Alt'+'F' brings up a framerate counter
  

Terran

• Calling down mules directly on minerals makes them to auto-mine.
  
• SCVs can be set to auto-repair by hitting 'Alt'+'R'.
  
• Use 'A' (scan-move) to have medivacs to follow your army
  

Zerg

• Have your queens hotkeyed with your hatcheries so you can inject larvae by clicking on the wire frames.
  
• You can give eggs their own move command so that the units will move there once they hatch, regardless of what the hatchery's rally point is.
  

Protoss

• If you have one hotkey that just contains all your buildings, then you can chrono boost with by clicking on the building's wire frames without looking at your base.
  
• Pressing 'W' selects all your warpgates (and excludes normal gateways).
  
• When building from warpgates, holding down 'Shift' lets you warp in the same unit multiple times without clicking its hotkey again.
  
• You can tell units warping in to move before they're done warping in, and they'll move there as soon as they finish.
  
  
  You can use M-command on a Marine to make your medivacs follow your M&M army without picking them up.
  
  Also, with Zerg you can select a handful of drones then assign them to build buildings. Useful when maynarding drones and you want to build 2 extractors when your drones reach the destination. Select drones > maynard to a mineral patch > Build extractor and place on each geyser. The drones will still start mining minerals, except for two of them who will build extractor
  Last edit: 2010-03-07 22:15:33
  
  
  A few other tips are to turn on building grids in the UI as it makes doing walls incredibly easy. Also, alt-t now turns enemies red rather than shift tab.