The Cooler Master is not adequately reviewed, but beyond that it's almost certain you can do better in the PSU dept.
The 9800GTX+ has not been a good deal lately. Maybe you found one? without a link or at least an amount I can't say.
Neither memory kit is a real good choice. Get 4GB, low voltage.
The Deluxe P5Q is probably a really good choice for pushing that quad hard. Another choice for less:http://www.newegg.com/Product/Product.aspx?Item=N82E16813128358&Tpk=UD3P