From my experience the Gemini and Hyper series are the only ones worth wild. Those V6/V8/V10 things actually don't outperform the Hyper 212/612s. They also look sort of ridiculous.
NewEgg has a shell shocker coming up for a pretty good cooler. I owned 1 before going with a custom loop and it was great, just a little loud but I did have it running hard on my controller. Last time I seen them sell for $29.99 in a Shell Shocker, retail is like $70. LINK