As far as strategies go its even possible to have some which you don't watch the market at all. For example I look at the market in the morning and night so like you, twice a day. Then I just close my positions on friday morning and open back on monday morning (Pacific Standard Time). Anywho the whole deal behind the strategies here is understand what you want from the market, you mentioned you were a day trader, there are plenty of scalpers around. You might want to use pivot points also? or breakout theories using every 3 candles. Really there is an infinite way to make strategies.
Remember though, bad money managment will kill a strategy. Excellent money managment can turn ANY system into pure gold. Though that is rather rare to find and if anyone knows it im sure they dont share it with anyone.
Look around the threads, also check out the yahoo groups of MetaTrader and check out the files they have there
http://finance.groups.yahoo.com/grou...nd_Indicators/