Well, the hacks are at the back of the strategy guides but if you are lazy, here are some:
Power Overwhelming: invinciblity
Whats Mine Is Mine: 10000 Minerals, awesome when you need lots of Zerglings
Breathe Deep: 10000 Vespene Gas, good on Vespene-short battlefields
Show Me The Money: 10000 of each resource, Great when you need large armies of Carriers, Battlecruisers, or Guardians/Devourers
Food For Thought: Allows you to create units over the population unit: although if you are Protoss you probably wont need this.
Modify The Phase Variance: Disables Tech Tree, so you can make big stuff like Fleet Beacons and Nuclear Silos without having to build stupid Engineering bays and Citadels Of Adun.
Operation Cwal: Insta-Build mode: builds stuff a lot faster. Still takes a little for Carriers and Battlecruisers, but summons weak stuff in a snap.
Black Sheep Wall: Lets you see the whole map.
Yes, there are all sorts of hacks for Starcraft. Use Epic sauce beta or Oblivian.
Yes, BWHF Agent: http://code.google.com/p/bwhf/
Although I don't agree with hacks you can look for one here. http://www.bwhacks.com/forums/main.php
StarCraft happened in 1998.
starcraft 2 map creator, it should comw with starcraft 2
Starcraft II can be played offline.
First off, you can play Starcraft by downloading the torrents. If you have a friend who has Starcraft, upload his number then you can download free, legal copies of Starcraft (10 spawns from a single CD).
South Korean starcraft and American starcraft is EXACTLY the same. The games hold no differences what so ever.
Although I haven't played Starcraft 2 before, I'm assuming it will be nice, considering Starcraft 1.
My oppinion: Starcraft 2
No they are not.
No Starcraft does not have a monthy fee, but you do need to buy it.