Need Advice on Upgrading New PC

I was given a gift of a brand new Dell Inspiron 545, which was great because I wanted to get a new computer anyway, but not so great because well...now I have to upgrade it. Particularly I want to be able to play games decently on it, and was thinking of getting the GeForce GTX 260 but I do believe the psu of this thing is only 300W and so I probably have to upgrade that as well, and I have no idea what's compatible for this computer. Also, any ideas for sound cards? And anything else I might be missing? I'm not actually that hardcore of a gamer and probably the most I would play on it is WoW, though you never know, and my husband might appreciate being able to play the latest FPSes on it here and there. So advice on a decent setup and that won't set me back too many $$$$ would be appreciated...I'd rather not go over $400 CAD upgrading this thing if possible. Need Advice on Upgrading New PC
[QUOTE=''TaraShewolf'']I was given a gift of a brand new Dell Inspiron 545, which was great because I wanted to get a new computer anyway, but not so great because well...now I have to upgrade it. Particularly I want to be able to play games decently on it, and was thinking of getting the GeForce GTX 260 but I do believe the psu of this thing is only 300W and so I probably have to upgrade that as well, and I have no idea what's compatible for this computer. Also, any ideas for sound cards? And anything else I might be missing? I'm not actually that hardcore of a gamer and probably the most I would play on it is WoW, though you never know, and my husband might appreciate being able to play the latest FPSes on it here and there. So advice on a decent setup and that won't set me back too many $$$$ would be appreciated...I'd rather not go over $400 CAD upgrading this thing if possible. [/QUOTE] Can you tell me what specs it has possibly or give me a model number or something so I can look it up. Also the case most likely won't fit a 260 GTX (that card is 10.5 inches long!). I'd suggest upgrading the power supply to like a 550 or 600 watt then adding in an ATi 4850 or Nvidia 250 GTS. I'll look for a sound card for it as well.Need Advice on Upgrading New PC
http://www1.ca.dell.com/content/products/productdetails.aspx/desktop-inspiron-545?c=ca%26l=en%26s=dhs%26cs=cadhs1



It's Quad, I still haven't figured out what else is in it or not but chances are it's all whatever is the default for the product.
Well a 4650 should run on that Pc without a need for a better psu. a 4650 will play games on medium-high settingsjust fine at 1440x900 http://www.newegg.com/Product/Product.aspx?Item=N82E16814102838%26Tpk=4650
Go with this power supply http://www.newegg.ca/Product/Product.aspx?Item=N82E16817152028 This Video Card http://www.newegg.ca/Product/Product.aspx?Item=N82E16814121326%26Tpk=4770 and this sound card http://www.newegg.ca/Product/Product.aspx?Item=N82E16829118105. Hope that helps
Thanks much. :)