I prefer Chicago Air to TCP
http://www.chicagoairbrushsupply.com/\
I have an Iwata Eclipse HP-CS and Harder & Steenbeck Infinity and I use an Iwata Smart Jet compressor. The Smart Jet is super quiet but you can definitely hear it, but it fades into the background pretty quick if you are working for any length of time.
The Infinity is roughly equivalent to the Iwata High Performance airbrush. The Eclipse is my workhorse and the Infinity I use when I'm working on something really small as I can get a finer line with it.
Both are dual action, internal mix, gravity feed airbrushes. I prefer the gravity feed over the siphon feed as I think they are much easier to clean and unclog than the siphon feeds. The siphon versions hold a lot more paint though, although I have never really had an issue with that.
I like the look of the Space Marine, although I usually go in three steps:
1) Prime with black (rare for me except when airbrushing)
2) From nearly completely underneath the model I go in with my darkest color
3) From slightly higher angle above the mid-line, I go around the model with my midtone.
4) Highlights coming in from the zenithal position.
That pretty much finishes off most models.
* It's NOT denial. I'm just very selective about the reality I accept. -- Calvin (Calvin and Hobbes)
* Cry havoc, and let slip the dogs of war - Shakespeare's Julius Caeser
* Artificial Intelligence is no match for natural stupidity.
* We occasionally stumble over the truth but most of us pick ourselves up and hurry off as if nothing had happened. Winston Churchill
* Tardis Express: When it absolutely, positively, has to be there yesterday
* Once more unto the breach, dear friends, once more, ... - Shakespeare's Henry V
* My two hobby blog;
Wargames and Railroads