To help things, I've signed up at Twitterfeed, which automatically posts on Twitter from your blog feeds. In this way I'll have a steady stream of posts on Twitter without any effort and I can then add other Tweets at my leisure, so to speak.
I got my button at Twitterbuttons, which I presume everyone on Twitter knows about - they have quite a comprehensive selection to choose from.
Finally, I also signed up at Twittad, where you can have paid ads on your Twitter profile. Based on your number of followers, they work out a price for advertisers to get placed on your profile - my profile's still pretty cheap at the moment - and there is also an Affiliate Programme.
So, let's see how it goes! Feel free to follow me!