Suggestions for my HP p7-1003w

[187ghost187]

I'm looking to upgrade my HP pc with an actual dedicated graphics card, I've picked out my power supply but now I need to know of what card would be best suited for my setup, I am a gamer so I know I need an upgraded PSU aswell as the GPU so here's my specs and the PSU I plan to get

System Specs: http://h10025.www1.hp.com/ewfrf/wc/document?docname=c02871948&tmp_task=prodinfoCategory&cc=us&dlc=en&lang=en&lc=en&product=5098942

PSU: http://www.newegg.com/Product/Product.aspx?Item=N82E16817371044

From research I've read that the radeon 6850 would probably be my best bet but if it is what brand(because of the coolers) would be best suited for my case ?

Also 1 other note...would the GPU fans help with producing positive airflow as the case as is does not have and so dust settles in the case...not a huge deal since I have no problem cleaning it but would be nice

 

[187ghost187]

I have bought the said power supply but now I need help with the graphics card, mostly because I know for a fact the case does not have positive airflow and there are no fans to the front of the case, so which card would be my best bet to stay cool and not restrict airflow, or maybe even help it

 

[refillable]

Perhaps, you can install some extra 120mm fans (if you can).

I think you need blower style fan which takes air from the case to cool the GPU and blow the air out. Here:

http://www.newegg.com/Product/Product.aspx?Item=N82E16814150573

 

[187ghost187]

Sadly with this case there's not many options for fans, I might end up having to swap out the case completely but I do want to ask would I be ok with going with the newer 7770's now that the markets shifted them down to $150, it's in my price range, yes I realize the cpu will bottleneck performance but they consume less power and do not get as hot as there predecessors. So really I'm wondering if they would be my best bet on keeping the case I have while not over heating the system