This is not at all difficult. Twitter will custom build you an HTML gadget, using a wizard in their website.
Twitter Help: How to embed a timeline explains the process.
- Sign in to Twitter.
- Go to your settings and select Widgets.
- Click Create new.
- Choose the type of embedded timeline you’d like and start to configure it:
- For User Timeline, enter the username of the user whose Tweets you want to display.
- For Favorites, enter the username of the user whose favorites you want to display.
- For List, select a public list that you own and/or subscribe to in the drop-down menu.
- For Search, enter your search query (for advanced searches, use Twitter’s search operators).
- Make sure to select Safe mode if you want to exclude sensitive content, profanity, etc.
- Customize the design by specifying the height, theme (light or dark), and link color to match your website. You can also configure your embedded timeline to auto-expand Tweets containing media.
- Click Create widget and then copy and paste the code into the HTML of your site. You’re done!
Look at the sidebar in my Buzz blog, for a demonstration of two of many possibilities.
Now, to complement FeedBurner / TwitterFeed, which lets you publish Blogger content to Twitter, you can display Twitter content on your blog. Just be careful, and use the Twitter content as an accessory or decoration - not as a major content source.