They both look to be a step up over the Xplorer X6-7200.
I'd be OK with the NP5160 and i5-2410M with 1600x900 w/ GT 540M and 4GB of RAM.
They will install 4GB as 1 stick so you can do a future upgrade yourself - currently about $26
for the extra 4GB to make 8GB. But that's a luxury, not a necessity.
Light gaming, movies/videos and programming - nothing there really demands the CPU upgrade to i7-2360M. But it's only $80 upgrade, an affordable luxury and something you can't easily upgrade yourself like you can upgrade the RAM.
If you're looking to play future games +3yrs down the road the 5165 and it's GT 555M seems like a good bet if it doesn't bust the budget.