Good morning, Gary,
In terms of your email sign-up box, the box itself is fine. The problem is, I have no idea what I'm signing up for. People guard their email addresses and don't give them away easily. So you really need to do more than just put a box up and hope for the best.
I'd suggest adding a page which tells people exactly what they're signing up for - i.e. how often will you be mailing them, what you'll cover, what's in it for them etc - and also describe what your free giveaway is. It may be you have this somewhere on your site, but if so I wasn't able to find it.
You could then add a sentence on top of the sign-up box in your left column which says something like "Sign up for my free newsletter now - or click here for more information". So people know exactly what it's for and what they need to do next.
That's what I do, and it results in a good number of sign-ups. You can see an example in my right column, [url=[Domain Private]/]here[/url]
In terms of your sales page, could I suggest that you take a look at the series of articles which is currently being featured in the SBI! blog (and will shortly become a series in our Tips'n'Techniques section). It's based on a Challenge which took place in the forums last year, and leads you through the steps to writing a good product review.This is a link to Part 1
. Part 2 is linked to from there, and Part 3 is due out on Wednesday.
Having read yours, I think you're on the right track but I found it a little long, text-dense (i.e. it would benefit from some imagery) and the "Buy" button is much too far down the page - I had to scroll a long way before reaching it.
One further comment: I'd really like to see a pic of you on your "About"page. People like to know they're communicating with a real person, and a photo helps. Many people also add photos of their family and you refer to yours so that would add to the personality of the site.
Just some initial thoughts to start you off. Hope you find them helpful.