I got a computer from work (old business desktop pc) and while i wait to have the money to build myself a nice computer, i wanted to know if you guys could recommend me a nice GPU compatible with my settings.
My goal is to be play games like LoL and some indie games (i'm not dreaming of playing Skyrim on this build if you know what i'm saying).
There are no worthwhile upgrades for that system, though it may be suitable for some basic tasks such as web browsing and word processing if you install a very light weight linux distro.
Until now i installed 7 64b, i also got 4*1GB PC2 RAM from the office. Everything works fine with LibreOffice 4.2 and Chrome. I just installed the basic stuff (iTunes, Thunderbird, TransmissionQT and VLC) and everything works fine. I would have loved to install a new SSD and GPU (even a basic one).
there's really no gpu suitable for that system. 250watts power supply is the lower limit of a PC. you will have to upgrade the PSU if you want an decent GPU and im not sure your system even has a PCI-e slot.