They've got Zalman and other well known makes. Personally i'm currently looking at a Gigabyte cooler (the top cooler on the Gigabyte page to be exact).
I have the Zalman CNPS7700-CU on top of a 4400+ X2 Toledo and the hs is worth every single penny. From my point of view at the top of the food chain you have the Termalright (XP-90 & XP-120) and then the Zalman (CNPS7700-ALCU & CNPS7700-CU). Thermalright heatsinks are really hard to get close to my place so I jumped on the Zalman option, got a pretty damm good deal also.
My personal preference is the Thermalright Xp-120, but you need to provide your own 120mm fan. to my knowledge, it's the coldest running air cooler on the market despite it's all aluminum design. It also has the potential to be the silent cooling enthusiast's dream come true.
My suggestion, grab a Nexus if you want uber silence while getting good cooling, or the biggest, baddest 120mm fan you can find to get crazy cooling. Or of course, get a reasonable fan and hook it up to a voltage controller 👍
ps. Avoid thermaltake. They're loud and mostly inefficient since the majority of their systems are knockoffs of better performing rivals.
I have the CNPS7000-AlCu LED w/Arctic sivler 5 on my A64... idle temps around 20C with coolnquiet enabled. Load temps I would'nt know because i'm too busy playing.