I7 3770 Temperatures

above 60 is okay, its kinda mainstream type temperature
enthusiasts usually have 40 C at full load temp
50 is pretty good
this i7 can handle even 90 C
with people who have H100's and H80i's they push overclocks alot
still 90 c i wouldnt feel comfortable with lol
at most 70 for me personally

just plug in a h80i for about 80 bux or so or get a noctua NH 14 which is the most formidable cpu fan cooler right now, it is massive so make sure it will fit your case
the zalman is okay i dont suggest overclock

unless your comfortable with very high temperatures

check your wiring, is it nice and tidy?
does your gpu is you have produce alot of heat?
get a full tower

if you have the bucks
get a super tower

im not suggesting you buy a new cooler, the one you have will suffice but if your interested then heres some benchmarks showcasing heat
heres some tests done on 3690X which produces even more heat than 3770k

H80 is one of them
remember the H80i is much better just not on this test to showcase heat dissipation or w/e

http://www.legitreviews.com/article/1913/6/

this link shows differences between kraken and corsair H series
http://www.anandtech.com/show/6530/closing-the-loop-con...

to remind you, kraken only has self contained liquid coolers for 140mm and corsair supports 120mm, some of them are too big having large radiators and or x2 120mm fans

Thanks for your reply!

My computer is brand new, so I have no intention replacing anything.
I have a decent case - Fractal Design Define R3, and I am not going to overclock anything.

What bothered me was the noise the Zalman made (it was always running on 100% power).
So I downloaded SpeedFan to reduce the amount of power the Zalman runs on to subsequently reduce the noise it makes.
I was just not sure how much I can reduce the RPM of the Zalman without risking the CPU so that's why I am asking  

np glad to help