Using Your Website to Generate Leads
Using a website from a canned template provider limits the amount of control you have over the website's design, limiting your ability to improve conversions. In an ideal world, you would have the time and budget to design and build a custom website, but I know that you need something up now.
One option is to use canned template provider for the main site, and use another site for your landing pages. The site could have the same look and feel, but use a different sub-domain. For example, the main site will run on www.mydomain.com, and the landing pages will run on something like secure.mydomain.com. This will allow you to have a fully functional site up now, and the freedom to optimize your landing pages for better conversions.