For gaming you'll be better off with a quad, you're missing a GPU also(Unless you have one already).
For number crunching the PSU is major overkill, even a 400W would do fine.
If you're not in a hurry, wait. The HDD overpriced and its probably going to go back to $40 in a couple of days (if you're in a rush to buy, the F3 would be a much better choice: http://www.newegg.com/Product/Product.aspx?Item=N82E168... ); Memory prices are dropping (slowly) also, so you can expect even lower prices in the coming days.
Right now, feel free to buy the case and the 1090T, and hold off the other just a little bit.