I do my test renders while putting scenes together at 800x600. Final renders are always at double what my finished image will be, so I render at 2560x2048 at 300 d.p.i. Then postwork and finally reduce to 1280x1024 for most of my images..

Expert in computer code including, but not limited to, BTW; IIRC; IMHO; LMAO; BRB; OIC; ROFL; TTYL. Black belt in Google-fu.