Any one here good with picking out computer hardware like Graphics Cards, Processors, etc. I need some advise :C

So I'll be getting a new PC on thursday and they have a pre-build one that looks promising to me. Just wanna make sure its gonna perform as good as I think it would be :C

So its

AMD A8 Quad-core 5600k 3.6GHz processor
Gigabyte F2A85XM-D3H AMD A85X Chipset
8GB (possibly 16GB) DDR3 Ram
Radeon HD7750 1GB GDDR5 128-bit Graphics card

Everything here is under my budget, but I'll need to be able to set up dual screen and work with high-res photoshop files (possibly 10k x 10k pixel)

Thoughts, opinions? O_o