Homepage looks great!
Consistent use of colors / branding and a clean, uncluttered layout.
My only concern is that the Social Media section appears below the fold so to speak for a lot of resolutions. (See
http://browsersize.googlelabs.com/ - a great tool.) In fact, less than 50% of viewers would see your products also.
So if it's important for that these features be noticed, you may want to consider shrinking the top rotating image or moving something into the sidebar.
Also, and I imagine you've considered this, it's sometimes a bit "dangerous" to have scrolling text from Twitter. There's some amusing examples of this going awry in the recent past. It seems like you're only receiving updates of people you're following, but there's always a chance of interesting things happening when you have unmoderated content on your page from outside sources.
All that said, looks great!
Best,
Nathan