I have been working on my old-ish HP h8-1010t for a while now. It has a seasonic 620W power supply, a 120GB solid state drive, a WD 1TB re3 hard drive, Windows 10 Pro, 24GB RAM, a GeForce GTX 680, and a Core i7-2600 (4 cores, 8 threads @ 3.4GHZ). What is the best place I can sell this and make...