I have a m3a78-em mother board 3200 graphics ati hybrid crossfirex most of the games say at least ati9200 to play mim setting what do i need to do to get better graphics Sorry iam not very smart about computers. can i just change what i have or add to it help colin
Uhm... It kinda depends on your PSU. If you don't want to change it (PSU = power supply unit, the thing that gives electricity to your PC) then you're limited to a serie of cards, wich will be better than what you have now, but not as good as the cards wich need "extra power".
If you can open your case, the big square thingy that gives you lots and lots of cables is the PSU (usually on the top or bottom). On the side, should be information about power in terms of volts, ampers and some other misc info. Look for the +12V info (that's 12 volts rail) and let us know about it. If there's no info, look for the brand and model.
Now, USD$150 can get you a nice card, so it's up to the PSU if it can handle it.
If you got a friend who knows how to put together computer parts then you may seek his help in case you are nervous. But if not, you can watch a lot of "how to do it videos in youtube" for a step by step PSU replacement & video card installation.