I was recently given a pretty old Emachine PC, the EL1333 SFF to be exact. I upgraded the CPU to an Athlon x2 b26 and plan to upgrade the RAM to 4gbs ddr2. The PC has a 250w power supply which limits the possible GPUs I could use. I know it's usually not worth upgrading these systems, but I need a PC for web browsing, tasks, and light gaming while I save up to get a better system. Which GPU would be suitable for this system?