Courses on Making Professional, Usable Websites?

Hagmonk asks: "I've been writing website backends in Perl, PHP, and MySQL for years now. It's always been about the functionality though, not the presentation. What I'd now like to do is offer clients a complete service - a professional backend, -and- a professionally designed front end (both from an aesthetic and usability standpoint). The thought of heading to a 'typical' website design course frightens me. I don't want to waste my time being spoonfed the very basics. I want a course that teaches me graphics manipulation, layout and usability. I want it in a strong espresso shot of a month tuition max, not spread over a lazy year. Do such courses exist? In Australia or on-line?"