Absolutely go with .COM if you ever intend to give out your URL
Verbally - because no matter what you say people will go to .com
Most people can`t spell either, and that`s another issue.
If you need to get type-in traffic you should consider your domain
name carefully. For click-thru traffic it doesn`t matter much.
In SEO results it is good to have a keyword or two in your domain
name but by no means essential to get page 1 rankings. It`s a GREAT
idea to have it set up like this: www.mywebsite.com/keywordphrase
so you build pages that are about different keywords - all ultimately
funneling traffic to your home-page, opt-in form, and so forth.