Although I have not personally used Corsair's Hydro H60 120mm all-in-one liquid CPU cooler, the crew at NikKTech have given it their seal of approval so that's good enough for me.
Like we mentioned a few days ago although the largest piece of the AIO sales pie belongs to dual/tri-fan 240/280/360mm liquid CPU coolers lately we've seen a few single fan 120/140mm models get released by some of the top players in the market.