Hey Jon,
I'll give you my two cents.
First of all, I think the layout looks clean and very professional. I agree with Rachel and Eric though -- the monkey's gotta go.
I don't think the headline is terrible, but I do think you could make it a lot stronger. It's seems to me to be off-center from the rest of your copy. Here's why: The people hitting your site are going to have one of two general mindsets:
1. They know a career as a computer consultant is lucrative, but don't know how to get started or make it work.
2. They really don't know anything about this career -- what you can make, the sort of lifestyle you can have, the benefits of the career, etc.
Now your headline seems to speak more to number 1 while your letter speaks more to number 2.
Make sense?
Also, if you're going after the number 2 crowd, I would spend a little more time in the opening paragraphs telling a story showing how wonderful this career is -- and how the reader can easily and quickly get started, yada yada...
And the last thing is you use the word "I" 216 times, "my" 95 times, and "you" 169 times. No, I didn't count!

textalyser.net.
The reason I even ran your site through textalyser in the first place is that "I" was sticking out like a sore thumb to me.
Anyway, those are my initial thoughts. Hope it helps and good luck!