If you're planning to use Photoshop heavily, you might need to increase your budget a bit more. Unfortunately, you will struggle to get something decent under $500.
Personally, I'd spend a bit more and get the Toshiba Satellite S55-B5258. Costs around $700 but look around for sales and I'm sure you can get it for around $600.
Good reviews too and voted as one of the best affordable Photoshop laptops over at
Scanzoom.
The link you have given is also not bad but not too sure on that AMD processor.