If you've got no experience at all about building a minisite, but at the same time you want a few up quickly, then Dreamweaver is a good option from a 'helping hand' perspective. Sloppy fat coding or not, it will help you to understand the relationship between the code and the outcome, and you might want to view it as a learning tool until you become a more experienced coder. A lot of experienced coders cut their teeth using Dreamweaver before moving on to other things.
If you are going to take the plunge straight into coding from scratch, then read up on the subject well first. If you are inclined to think that you will struggle with coding, there is a good chance you will find it too daunting and be put off site building all together.
Like most things in life, you'll get the hang of it sooner or later. Just stick at it, whichever route you choose!