Slimline help!!

i have a HP pavillon slimline and i already looked at some vedio cards and power supplies here are links: http://www.newegg.com/Product/Product.aspx?Item=N82E16817374002 and http://www.bestbuy.com/site/olspage.jsp?skuId=9267401&type=product&id=1218072179509 will this all fit and work in the small case? and if you know of better cards or power supplies please tell me thx :) 13 x 10.9 x 4.2 inches i only want a power supply that has around 350W the model is a s3020n

How small is the case? a few measurements would help.

also i dont need a great video card either just 512mb at least, like the one i linked to

i hate oem pcs, i had to remove a broken dvd drive yesterday and i couldn't! i had to remove all the rivets if i wanted to access the panel behind the motherboard to remove the 2 securing screws.

Anyway, i've just seen the pictures of the insides of your pc and there is no room for a video card. i'm afraid you are stuck with the integrated one