Power supply

Win XP Pro SP2

How do I find out the brand and the wattage of my installed power supply?

And, (I'm building a new computer - home use, single user, mostly games. Good video card) What size power supply is slightly above what an average user would want?

Thanks, in advance
Bob


BTW, Any guess what I should pay for a no frills case, power supply (and does the power supply fan come with it?)


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