Question about type of heatsink to use w/ a V351

[smurray]

Building a new PC, and have been going back and forth on what case to use. Most recent submission into the pool of possibilities is the Lian-Li V351. I have a question about what type of heatsink would be best with this case. I've done some searching, and have found two conflicting opinions. One place said that a top-down style heatsink would be best. Another place said a tower type heatsink would be best for two particular reasons. The first being that since the PSU is directly above the heatsink, a top-down style would be fighting with the PSU fan for air. They also said that a tower style would be directly in front of the intake fan, and could continue the momentum of the moving air out the back of the case. That logic seems to make sense, but I wanted to get some more opinions.