Vulture Drop

The Vulture Drop is a commonly used strategy by experts, and those who are wannabe experts. (I happen to be a wannabe who uses it :-) It is both a rush and a drop, but will not work if you are going to be rushed. Therefore, only use this strategy if you don't think that you are going to be rushed heavily. A light rush you will survive, but a heavy one you will not.

--Send all of your SCV's mining, and keep building SCV's until you reach your eigth
--Have your eight SCV build a Barracks, and then build another SCV
--Have that SCV build a Supply Depot
--When the Barracks and Supply Depot are finished (which should be at the same time), have one of those SCV's build a Refinery, and have the other build another supply depot. All the while build SCV's one at a time.
--Send the SCV's that you are building to mine minerals until the Refinery is complete. Send two more SCV's to it (that should be two plus the one who built it), and with the SCV who built the Supply Depot build a Factory. All the while building SCV's one at a time
--Have another SCV build a second Factory while the first one builds, and when the first one is done add a Machine Shop immediately, and send that SCV to build a Starport
--When the Machine Shop is done, have it research Spider Mines, and with the SCV who built the second Factory build another Supply Depot. Have the second Factory also build a Machine Shop
--While Spider mines are researching build Vultures (at very, very, very, very least four), and when the Starport is done have it immediately add on a Control Tower
--When the building Supply Depot is finished, build another one, and when the second Machine Shop is finished have it research Vulture Speed. Also send the SCV who finished the Starport to build another Factory
--When the Control Tower finishes, build a Dropship. When the building Supply Depot is finished build an Armory
--Have the Dropship load four of your vultures (hopefully you have more), and go off to your opponent's base (of course you've already scouted him out :-)
--Unload all Vultures into his miners and IMMEDIATELY place Spider Mines EVERYWHERE. Have the mines in the mining area, and all around the perimiter incase of incoming attacks.
--If they have only close range untis, then you should be able to micromanage your Vultures around to leave mines, run, go into Dropship, move Dropship, go out of Dropship, etc. (not necissarily in that order)
--By this time all their workers should be dead from the Vultures, and if they make more, kill 'em
--In the meantime, research seige mode, build another Starport (for more Dropships), research vehicle weapons, build Goliaths, Seige Tanks, and more Vultures for a second wave of a drop attack (your vultures are still in his base though! Don't take them out unless you have to!)
--One thing that many people make the mistake of doing is letting your Spider Mines blow up your Vultures. DO NOT LET THIS HAPPEN. The Vultures are incredibly fast and you need to move them clear of any Spider Mines that just got up
--Good Luck!