I would suggest a beginners book on chess if you want to know the basics. There is no such thing as an "overall strategy", chess is more complicated then that. There are strategies, but these are little things like "value rooks more then bishops". You don't become a strong strategical player after reading one forum post, you become one after much study and play of chess.
Nevertheless - a beginners book (one that explains the moves of chess in the front) ought to teach you some basic strategies, along with basic endgames, tactics, etc. It's really not that much money, only 10-20 bucks, you should be able to find a beginners book in most bookstores. Or you could get one from your library. Better yet get a chess coach who can tell you what strategies you are missing.
If i had to say something as a strategy... Be greedy, try and hold onto every piece/pawn. Move your two central pawns 2 spaces forward whenever possible. Develop your knights and then bishops as quickly as possible. Castle so your king is safer. The worth of each piece in pawns is: Pawns = 1, knights/bishops = 3, rooks = 5, queens = 9.
Again though - buy a book.
What do you think is the best (quickest and easiest) overall strategy when playing chess? I seem to have problems with the strategies I currently use.