Dell Vostro 200 Slim Tower CPU fan and heatsink

[graphpaperjoe]

I would like to replace the factory CPU fan and heatsink with a more efficient cooler. But, the position and size of the tower have to factor in. What unit would best fit and beef up my system?

 

[AKM880]

This isn't a BTX layout system correct? Some Dell's have weird layouts (i.e, BTX) which limit the upgradibilty