Pretty decent but for the motherboard I'd go with either the
Gigabyte GA-EP35-DS3L or
GA-EP45-DS3L. The P45 chipset (2nd link) is newer and runs cooler. It also supports PCIE 2.0 so its a bit more future proof.
If you can stretch your budget, it would probably be worth while to get the E7200 instead.
What I'd do is keep an eye out on NCIX sales and the exclusive deals on here. You could probably save a good amount of cash doing so. Also you could buy used components off members of this forum. Just an example: the
600W OCZ PSU is on sale for $50 after MIR.
Case wise, lots of people are going to tell you not to get the Antec 900 and to get the CM690 instead. Both are fine cases, I have a 900 myself and have done quite a bit of modding to it to make it a great case. You might want to consider the Antec 300 even as it's about half the price of the 900.