Hi, i recently built my own system and at the time i decided to get a cheap graphics card just to get the system up and running. I am now in a position to upgrade to a graphics card that will compliment my system. I use the pc for 3D rendering in programs like 3DsMAX, Vue and Poser Pro 2011. These programs rely on cpu and ram more then graphics card abilities but i want to venture into games so a better card may be needed. Here is my system spec.... Windows 7 64bit Intel i7-950 Quad-Core Processor (3.06 GHz, 8MB Cache, Socket 1366) Gigabyte SKT-1366 X58-USB3 Motherboard OCZ 12GB (6X2GB) DDR3 1333MHz/PC3-10666 Gold XTC Triple Channel 2x Samsung F3 HD103SJ 1TB internal Hard Drive SATAII 32MB Cache 7200RPM Coolermaster Silent Pro 500W Modular PSU HannsG HZ281HPB 28-inch LCD TFT Monitor HD1920x1200 connected via a HDMI cable. and, Gigabyte GT 240 1GB GDDR3 DVI HDMI Out PCI-E Graphics Card Also running off the PSU are a simple card reader and Samsumg DVD optical drive. Depending on what Graphics card you suggest i also want to upgrade the optical drive to a blu-ray like this one,,, Samsung SH-B123L 12x BD-ROM DVD±RW DL & RAM Lightscribe SATA Optical Drive - OEM Black So i guess my limiting factor here is my PSU ? but i can only afford what the PSU can handle as i dont really want to get into changing that too. Thanks for any advice offered, regards, Lee.