My site needs help! Have to update html pages individualy, any advice, suggestions?

I believe my site needs some help to expand a bit more. I have started this site from scratch and have been building new html pages over time. It's become to the point where I want to make more pages put it will become impossible to stay updated on all the pages.

Is there anything I can do that wont effect my current traffic. I get about 30-50 hits a day with all organic traffic but dont want to lose it.

My site is...

FreeBundles com

 

I would try and change the site over to a CMS like joomla where it will do all the work and you just feed it content.

 

try wordpress..that would be a best solution.

wordpress is also search engine friendly..

 

But will this effect my traffic? This site currently has some revenue that I don't want to lose.

 

No..with the help of "301 redirects"..any traffic on your old site and will be redirect to new one.

 

So if i have 1page rankings in yahoo search, this wont' effect these indexed pages there? Should I start off designing it, say freebundles . com/blog until it's finished then push it over?