Well, Basically, Alienware is kinda expensive. Aim for the budget. We do not know what PSU Alienware aurora is using.. so yea, CyberPower is a good choice. Or better, Build your Own
You might get a good PC for a price of half.
ThermalTake has better ventilation
Don't be intimidated by the "Cool Led Lights stuff" things. Its just lights. Nothing to do. You can DIY it