1. I would avoid the Hydropcooper. While historically it has decent GPU temps, the VRAM temps have significantly lagged the better GFX water blocks by about 12C ..... the Hyrocoppers VRM temps are absolutely dismal at a whopping 30C above the competition. That pretty much takes away any value of water cooling
2. What type of setup are you looking for ? A swiftech H240-X is an all in one and combined with the Asus Poseidon, it does very well for a 1st time venture into water cooling.
3. I looking for a custom loop, I would recommend
EK Supremacy Evo
EK 980 Water Block for MSI 980
Swiftech D5 PWM Vari Speed Pump
Alphacool XT45 w/ ( 3 or 6 Phanteks FSP-140 Fans)
Mayhems Blitz Kit for Cleaning Rads
Mayhels pastel coolant
Phanteks Enthoo Luxe Case
wattage for rad sizing = 185 (GFX) + 135 (CPU) + 20 pump = 340 watts
340 x 60% = 204 watts
At 1,000 rpm (3) of the Phanteks fans will give you 203 watts of cooling
http://www.overclock.net/t/1457426/radiator-size-estimator