rwoody :
Sorry for the late reply. I'm surprised no one else has helped you yet. I have the H440 (pics and info in my signature) and I love it. The stock fans work just fine. They aren't flashy and they can't be compared to something like a Noctua, but they are still pretty good. Don't bother replacing the stock fans unless you want different ones for aesthetic reasons. I did replace mine, but only because I had a specific theme I was going for. I keep my stock fans as a backup, or perhaps to use in another build.
Cable management in the H440 is good, but not great. Some cases give you tons of room to leave the cables just hanging around wherever you want. Some people just don't care what the back of their motherboard looks like, so they just stuff the cables in and put the panel on. You can't do that with the H440. The back panel (as well as the other panels) has sound dampening foam on the inside, and it forces you to have good cable management. It's important to get all the cables as flat as possible on the back of the motherboard. Thankfully NZXT designed this case with plenty of tie down locations, so it's not that hard to get everything flat if you take your time and tie everything down. The bottom basement (where the power supply sits) offers plenty of extra space, so you could coil up any extra cable slack and push it down there. Overall I would give the H440 a 7 out of 10 for cable management.
A late reply indeed, thanks anyways though
I'm using for about 3 weeks now and I completely love the case.
I bought 2 Corsair AF120mm LED with it becuase I was able to get them dirt cheap. As for right now, I have the 2 aftermarket fans at the top front and at the middle front, a stock fan at the bottom front and a stock fan at the top front. Those 4 fans are all intake.
As for exhaust, the stock 140mm fan is at the back of the case and the last stock fan is at the top back of the case.
The front bottom one doesn't really do anything as all the air is blocked by the cables and the PSU shroud anyway, so im planning on moving that to the top middle spot. I haven't yet decided wether it'll be intake or exhaust though.
As for cable management I'd say it's pretty good (for a first time building a PC that is..). Didn't have any trouble with it.
Your build looks gorgeous dude... Like wow.. Was it a sponsered build?!?