Need cheapest SEO solution, any suggestions?

[Alex]

This question is now old but in 2013 things have changed a little. Nowadays, you need to be very careful with your SEO... if you dont know much about SEO then definately do not hire so called "professionals" that are often located in Asia as they are likely to do more harm than good.
You want to simply get your name out there by genuine blog posts, Youtube videos, good quality press releases (syndiacted through PRWEB), put yourself on listing sites etc. But do all of this manually and vary all of the descriptions, make them high quality and vary the anchor text linking in to your site. Use Google plus, Authorship, Rich snippet markup, any other kind of structured data, make sure your URLs are clean. Make sure you make nice titles, descriptions, H1 tags and good quality content on all of the pages
Above all else make sure your site contains valuable information and is rich with unique content.
If you are genuine Google will figure this out and it will work well, if you try to automate things in mass by using SEO tools Google can figure this out and will punish you accordingly.