Cooling For Legacy Cards?

[Torinaj]

I'm putting finishing touches on a legacy build, and need to buy coolers that fit Nvidia Geforce 6800GS & 6800GT. Coolers must not crowd out any expansion slots (or anything else), and work better than stock coolers for those models. Suggestions?

 

[Wicked Mystic]

Arctic cooling had models for that range graphic cards. Might be too big though. Not sure if current GPU coolers fit so old cards.