That's a good choice for your needs.  For sure get the SSD boot drive and not an old style spinner hard drive as they are slower and run hotter (512GB at least on the boot drive as SSDs operate best when they have approx. 20% unused space and windows is a hog).  For games and data, just then get a 2.5" SSD that is easy to put into one of the 2 drive bays at the bottom of the case.  The power cables are already there, you just buy the drive from amazon or newegg along with a SATA data cable (get one with a 90 degree end on it for where it plugs into the drive itself).  Also, be sure to get the liquid cooling option as the Aurora desktops run a bit warm due to the smaller size case and limited number of fans and the air cooled CPUs get very hot and lots of posts here and on reddit about that.   Lastly, the 1000 watt PSU is a good choice as the PSUs are proprietary and not easy to change if you had gone with the 500W and needed a larger one down the road.  Also, I have seen that the lead times vary a bit depending on if you go with the black or white case, and the white case has more LEDs on the front if you are into that sort of thing (the black case has fewer oval rings...it's not obvious from the pics on dell's website but you will see the white case has an extra led ring on the front and the side lights up too, unlike the black case)
First time PC buyer here. Was planning on building my ideal setup but components are hard to come buy so i thought i’d go with one of these. Can’t speak on the PC in terms of Performance yet but would like some feedback on the specs. I mainly play games like GTA and COD. All feedback is welcome. - 16GB Dual Channel DDR4 XMP at 3200MHz - Liquid Cooling and 1000W Power Supply - 2TB 7200RPM SATA 6Gb/s - Ryzen 7 5800 - NVIDIA GeForce RTX 3070
First time buyer