Firstly brilliant content - but i think the front page being too cluttered would give a bad first impression. I would recommend changing the layout so it looks neater. Like this:
http://putfile.com/pic.php?pic=11/30514312733.jpg&s=x11
Notables features are search moved to top of page and google search removed (its pointless) and logo moved to left. Left links made smaller and moved closer together and all links at top moved closer and categorised. One flash animation instead of two pictures showing before and after with all text on page working around the flash. Google ads having a heading: 'Useful links' above it - hopefully this will get your Google ads more clicks and make you more money.

Also i would put more keywords on your page like 'home improvements' and 'do it yourself' this would help people find yourself on Google and also mention what your forum is in the main content it will amke people want to go on it more.