Looking to purchase my first Laptop

[kipliq]

Reading and reading I'm getting more and more unsure on what to buy. My computer specs 8GB mem, Phenom II x3 4th core unlocked 3.2ghz and gpu ati 4750. I'm going away for 6 month and I play games like swtor but I will be using Photoshop and lightroom more gaming waaaay less or not gaming. I don't want to spend more then $700 and would like to get similar performance. Once I return not sure how much I will use the laptop but I might. Can you all point me in a good direction or an example of what to look for. Thanks!

 

[kipliq]

I need a laptop that part is a must.