I am a paediatrician by profession, which hopefully makes what I am going to say trust-worthy and reliable. I have attended a course on Still Life by Proimage in SLCC. When I got hold of my 300D about a year ago, I wanted to refresh myself on the basics just like you. After checking with a few centres, the timing of the course on Basic Photography was just right for me at SLCC. After making some arrangements over the phone, I got to the centre. They actually had a talk with me and found out that the basic course may not be what I needed as I already had the basic know-how. We finally narrowed it down to the Still life course as I had to learn more about lighting, etc. I had my initial doubts about the standard of the centre when I looked at the place - a rather small place which doubles up as a studio, classroom, office and processing centre. In fact, we actually had our lessons along the corridor on the first night. However, I can vouch for the professionalism of the teachers and staff there, they are not there to just earn your buck, they really want to teach you how to take good photos. They take the time to make sure I learn the correct stuff and even on a one to one basis sometimes.
Well, I am not sure about who is disguising and promoting their stuff but I guess this is a free world and you are always at liberty to check things out first before signing up.
All the best in your search and may you enjoy your photography just as I have thoroughly enjoyed mine.