When I bought Windows 7 the guy  mentioned (and another customer in the line confirmed) that they had problems with the 64 bit version (some compatability issues).....I can't remember all of what they said.
nice and vague huh ? I was already in a bad mood for having to buy a new hard drive and new OS when I didn't plan on it, so I didn't really pay attention to anything other than they had probs.

If you're going to get it, a couple of things to bear in mind:

1) Get the H50-1 it runs cooler.

2) Make sure that the radiator will fit your case. I have the Lian Li Tyr PC-X2000 so no probs for me, but I made a rig based on a Lian Li PC60 and I had to cut a side panel to fit it. Even though it looked great, it was an inconvenience at the time because I had no-where else to fit it.

All in all I'd recommend it. The only noise coming from my case now is my Gfx card (which I'll water-cool when I get around to it)

Amd phenom II 925 ocd to 3.4ghz
Gigabyte ga-ma790xt udp4
4gigs of gskill ddr3 @1600
xfx gts 250 ocd to 925/1375
Samsung spinpoint 320g 7200rpm HD
thermaltake 700w ps
antec mid atx case with 2 120mm fans
sb xtremegamer x-fi
ac freezer 64 pro
logitech keyboard
razor copperhead mouse
saiteck cyborg joystick
Acer 22' monitor 2ms lcd

So far its the best system ive built not one single glitch.

One more note i plan on adding 4 more gigs of that gskil ram (cause its so sexy) at which point i will switch to windows 7 64bit

very sexy

im getting that phenom II 965 3.4 GHz tomorrow. weeee 

Like this?

That looks like this
You want to do [ url=linktowhatyouwant]Text that you want [ /url]  (take out the spaces)

I don't see the point in doing what that guy is doing to the H50; it's a closed-loop system.

If someone wanted to make their own water-cooled rig, I wouldn't start by opening a H50... still, each to his own I guess.

The H50 as it is keeps my CPU below 30c, I do get some northbridge dissipation under load (44c) but even that's well within acceptable limits (90c).

If you get the H50 Kaay, please use the pull method, not the push, remember; you're trying to cool the radiator, not heat the air.

Hey PX

whats the measure ment from the top of the fan to the top of the radiator. I lowered my rear fan mounting about an inch im hoping that the H50 will clear now.

Heres my case...PX     Tsunami H50 Fit

The guy in the video is a dork hahaha

PS  Yeah TOPO it worked