A lot of people on this forum are talking about (in the last few days anyway) that it's a bad time to invest in new rigging equipment. Is that something that can be determined by 3 or 4 factors (power = 8 cents per KW hour, 1 BTC = roughly $14US, difficulty = a lot, rig building = $110)? Assuming all the variables stayed the same for the next few months, is it seriously a bad time to buy/add hardware now? I just bought a good video card cuz I wanted to upgrade my video card before I knew what a BitCoin was, but I am a little overzealous upon learning about BitCoin mining (brand new to me, I knew nothing 4 days ago) and can afford to build a decent 3 card system this week.