It looks pretty solid from the info you have provided.
But like Bill2 already said, the GPU will be a bit weak, especially considering your main focus is gaming.
I would look to upgrade that to a more powerful graphics card suitable for the resolution you wish to game at.
If not for gaming, it would be just fine as is.
But sadly, this may bring up another possible weakness. The Power Supply.
Often times, a Pre-assembled PC comes with a Power Supply that just adequete for the hardware it ships with.
If this is a pre-built system, You'll need to check into the power supply it comes with.
The most important factor to look at, in regards to a more powerful GPU, will be the amperage on the 12V rail.
If it ends up the power Supply must be replaced to support any larger GPU, you may be just as well off to buy everything out right, and build yourself.
Considering the price of the PC, a new PSU, and larger GPU.