I found something totally cool on Celia's blog today. It's a 'Top Commenter Widget' which displays the top 10 commenters on your blog. What a great way to reward your regular commenter!
It's really easy if you use Blogger. Just type in your blog name as per the instructions, press Customize, then press the Add to Blog button.
It puts it directly into your layout! Drag it to the position you prefer and press Save. Presto!
Thanks once again Celia, you're fab!