My opinion, take it with a grain of salt:
The feedburner image is way too large, it overpowers that whole top of the fold.
The snap image things are irritating, they make it hard to read since they pop up all the time. Yes, I know I have to hover a link -- but since your link colors don't make for noticable links it's a simple 'mistake' to accidentally hover over one.
The green/orange images: there are too many of them, and they're ugly and large. Similar to the image I mentioned above, they overpower the content of the posts they are in.
The images inside your posts need some styling. For example, that power supply image -- that ought to be styled so that text wraps around it. Your images are (visually) hanging, or dangling off the bottom of your posts.
You also need to style your search button. It looks naked.
The posts, they seem.. squished? Maybe it's due to the fact that I feel like all the digg/delicious stuff is in the way? It looks almost like you don't want anyone to read .. you just want them to click one of those damn images :)