Responsive twenty eleven based website – Questions

Hi,

I have created a website, its address is: http://www.webfoodculture.com

Originally, in my style.css, I set both the values:
max-width=1000px;
min-width=1000px;

Since I want to be able the site to adapt both to desktop and tablets (a completely different site just for mobile devices will follow soon), I’m changind all the css values from absolute to percent.

In addition, I changed the width value to:
min-width=800px;
This way the site looks good even on a small Kindle Fire HD in Landscape mode.

I have 2 questions:
1) Is it 800px a good min value? Am I right when I say it’s good even for small tablets in landscape mode? (given the structure of my site it’s just impossible to have a decent view in portrait mode).

2) Now, when I look to the site, it’s right side is right on the top of the tablet right border, a certain amount of border is on the left. If I completely remove the “min-width” value, the page looks perfectly centered on my tablets. How can I fix this?

Many many thanks in advance.

A.