How to determine how much watt does my computer need?

I am building a computer, but I am not sure do I need to buy a new power supply or I can use my old one. My old power supply is 300Watt..

My CPU is Athlon II X4 630, and the mobo is A760G...

Are you expecting the Apple tablet?

Are you expecting the Apple tablet? Will you buy it? If yes, what is your consideration? price? outlook? system hardware? system software? new features?

Do you eat breakfast?

I normally don't eat breakfast in weekend. In the weekday, it really depends on what time do I wake up. If I wake up early and have extra time, I will have breakfast, but if I wake up late and need...

What ideal food do you think a buffet must have?

I like bread, so I will vote for bread, and then clam chowder... these are good. In addition, I want seafood, sushi, honey ham, prime rib and ice-cream... what specific food do you like to have in a...

Which search engine do you use or like the most?

Yahoo? Google? Bing?
I, personally, use google all the time. I rarely use yahoo. I can't explain why I like google more than the others, but it seems the result that I get from google search is...