What are you currently playing?

[Mayberry Machiavelli]

67. Yeah and I will say that the A.I. is much, much better than the one SC1/BroodWar had.

To beat the highest level of it you have to eventually become a semi-competent player (i.e. able to build up an economy and army at a decent pace which are the most important skills by far).

But I'd say that the single player campaign alone makes the games worth it, Blizz does a great job with those, I've just been so embroiled in multiplayer with the Heart of the Swarm expansion that I haven't gotten around to playing its campaign yet.

There are also tons of instructional videos on Youtube and elsewhere both chronicling epic games and also instructional videos showing how to execute certain builds and unit control/micro techniques, as well as discussion of overall strategy.

Here's an example of a YouTube video of one of the best tournament SC2 games ever, a deciding game in the semis of a huge tournament:

twitch.tv is a major resource also, that has channels that broadcast live most of the major tournaments that happen as well as hosting the streams of many major players (as well as a lot of really good amateurs as well). It's free to make an account, then you can "follow" players whose style you like or enjoy watching and you can watch when they are streaming. As a bonus a lot of the twitch channels will also archive videos from the streams, so even if you miss the live cast/stream you can go to that player or tournament's channel and watch from the archived video:

http://www.twitch.tv/directory/game/StarCraft%20II%3A%20Heart%20of%20the%20Swarm