600t gpu cooling help!

[Maxi011]

Hey I have the 600t white edition, and a gtx 480 SE, which has the same cooler design as this card in case your not sure.
http://www.overclockers.co.uk/showproduct.php?prodid=GX-086-GI&groupid=701&catid=1914&subcat=1010

So I take it that design dumps a lot of hot air into the case.
The cooling on the case is practically stock at the moment, except I have added a fan above a hdd bay. I'm finding it doesn't really cool my GPU as well as it should do.
Here is a diagram of what I'm basically doing.

I am thinking I should try to use the mesh side panel, and put an exhaust fan on it? Try and get some of that hot air out of the case.

If you have any suggestions please let me know as i am a complete noob when it comes to cooling.

 

[Maxi011]

Yeah that video is pretty informative, never really thought there would be that much of a difference.

I have put the mesh panel on and a gentle typhoon on it Pretty big difference straight away, I was reaching into the 90's on Witcher 2 and now its around mid 70's.
This card really seems to like exhaust, so I'm probably not gonna change that 120m fan to a better one.

But the real reason for sorting this out, is because at 70 degrees the card is a lot quieter than when its in the 90's. so much so that chucking more fans at the machine actually makes it quieter .

I'm definitely considering replacing the top 200mm fan with two 120's (i swear most of the noise comes from this fan).
Its a shame because i really like the white LED's. If anyone knows any good 120mm fans with white LED's let me know .