Changing HSF on an AIW 9700 pro

[SaiyanX]

I current own an All-In-Wonder 9700 pro and I want to begin overclocking my card. I am concerned about the cooling so I have thought about changing the heat sink and fan on it. Does anyone know if the ATI HSF is sufficient for overclocking or what would i need to get? I have an all in wonder so i heard its hard to fit most other hsfs. The ice burg 4 looks nice at newegg but my ati heatsink looks like a better cooler. Please help! thanks!

 

[Titanion]

a crystal orb will be better than the stock heatsink... use as3 or as5...

<font color=red><b>NF7-S/Mobile Barton 2600+
210x11 1.82v SP-97
1GB Corsair XMS PC3200
BuiltByATI 9800 Pro</font color=red><font color=black>
NF7-S/Barton 2500+
200x11.5 1.76v
512MB XMS PC2700
Sapphire 9500@9700