http://www.amazon.com/CyberpowerPC-Gamer-Ultra-GUA430-Desktop/dp/B00CF1T15W/ref=pd_rhf_gw_p_d_7
http://www.newegg.com/Product/Product.aspx?Item=N82E16824254114
These are both my monitor and my PC
I'm thinking of buying a new power supply, Graphic card, and Monitor
My budget is 400$
Monitor: http://www.newegg.com/Product/Product.aspx?Item=N82E16824236205&cm_re=1080p_monitor-_-24-236-205-_-Product
PSU: http://www.newegg.com/Product/Product.aspx?Item=N82E16817139027&cm_re=500w_Power_supply-_-17-139-027-_-Product
GPU: http://www.newegg.com/Product/Product.aspx?Item=N82E16814202050&cm_re=270x-_-14-202-050-_-Product
Total price (w/o shipping): $390 :D
hope i helped!