Depending in what you are going to play... I suggest for 1080 the HD6850, its still a good card and you can find good deals online.
The HD 7770 uses less power and runs cooler and have great overclocking potential, but at high resolution the 128bit bus suffers. Thats why the HD6850 and its 256bit bus will give you and advantage at high resolution, also it will run better on DX 9 games and it drivers supports its more mature.
For the PSU, getting a well-branded 500W will be plenty for your needs, and well suited for a CPU+mobo upgrade in a future.
I like Corsair, Antec and seassonic. Some Cooler Master GX series are good but you really will want to spend your money in a realiable brand.http://www.newegg.com/Product/Product.aspx?Item=N82E16814102908
There are good deals, also maybe you can get the HD7770 a little cheaper, and cut down the PSU for something with less wattage and cheaper, but this are just general recomendations, its all up to you pal