yes. the new PSU is better. better brand an more watt.
The reason you chose a PSU with more Watt then you need is because the PSU are gonna be less stressed when powering the system. you will typical hear less noise and less heat will apply to the system via the PSU. Also they tent to be a little more power efficient
but isn't it braking your budget?
It is only 10 dollars more.....Great sale......60 something bucks off the lowest it ever goes...