If you live in the United states you probably have crazy black Friday deals going on rn, so you should shop around a little, also I'm more of a person who leans on amd systems, since the cpu is great and also cheap, if you pick amd dont go lower then a ryzen 5 3200, ryzen 7s are at a great price rn for getting a deal but it's not needed, if you find a system with a good graphics card and a ryzen 5 under your budget you can upgrade to a 7.