Yeah that is the concern of AIO's, although it will rarely leak, there is still that chance it will.
I had the DeepCool Captain 120 before (fit's nicely with your red theme), but it leaked, thankfully within the 2-year warranty, and no components were damaged. Was replaced by the newer and better EX versions though.
Air coolers avoid those risks. Though, a good air cooler can only go as much as the cooling performance of a 120mm/140mm single rad AIO and can't beat those good 240mm/280mm AIOs (such as the H100i).
The Cooler Master V8 GTS is really more of looks than performance (for a hefty price!). I don't know of any good air coolers with that red LED blings. But I can suggest better performing black-themed air coolers (no LEDs though) that fits your H440 case (with 180mm CPU height clearance):
Cryorig R1 Ultimate (http://www.cryorig.com/r1-ultimate_us.php)
Black Frame/Heat Sink and Dark Gray Fans | CPU Cooler Height: 168.3mm (6.6") | 2 Fans
be quiet! Dark Rock 3 (http://www.bequiet.com/en/cpucooler/483)
Black Frame/Heat Sink and Black Fans | CPU Cooler Height: 160mm (6.3") | 1 Fan
Some don't feel the need of installing a rear exhaust fan if the CPU Cooler was made to act as an exhaust (it depends on preferences).