There are 2 ways you can go about this:
1. Use OptimizePress to build your home page. Use one of its templates, or go on Youtube to figure out how to use OP to create a nice-looking landing page, then assign that as your homepage. You can then use whatever theme you want for the blog, as long as it has nice layout. I believe Day Job Hacks (Joey's niche site) uses OP for his home page.
2. Use Smart Theme for your site. That's the recommended theme that OP uses. It's a premium theme with a hefty price tag.
The choice is up to you. Hope that helps. Cheers